21028267680

素因数分解:

$2^5\times 3^1\times 5^1\times 7^2\times {\mathrm{894059}}^1$

素因数の和:894091

約数の個数: 144

約数和(自身を含む): 77053667040

約数和(自身を除く): 56025399360

約数列:

[1, 2, 3, 4, 5, 6, 7, 8, 10, 12, 14, 15, 16, 20, 21, 24, 28, 30, 32, 35, 40, 42, 48, 49, 56, 60, 70, 80, 84, 96, 98, 105, 112, 120, 140, 147, 160, 168, 196, 210, 224, 240, 245, 280, 294, 336, 392, 420, 480, 490, 560, 588, 672, 735, 784, 840, 980, 1120, 1176, 1470, 1568, 1680, 1960, 2352, 2940, 3360, 3920, 4704, 5880, 7840, 11760, 23520, 894059, 1788118, 2682177, 3576236, 4470295, 5364354, 6258413, 7152472, 8940590, 10728708, 12516826, 13410885, 14304944, 17881180, 18775239, 21457416, 25033652, 26821770, 28609888, 31292065, 35762360, 37550478, 42914832, 43808891, 50067304, 53643540, 62584130, 71524720, 75100956, 85829664, 87617782, 93876195, 100134608, 107287080, 125168260, 131426673, 143049440, 150201912, 175235564, 187752390, 200269216, 214574160, 219044455, 250336520, 262853346, 300403824, 350471128, 375504780, 429148320, 438088910, 500673040, 525706692, 600807648, 657133365, 700942256, 751009560, 876177820, 1001346080, 1051413384, 1314266730, 1401884512, 1502019120, 1752355640, 2102826768, 2628533460, 3004038240, 3504711280, 4205653536, 5257066920, 7009422560, 10514133840, 21028267680]

約数ペア:

[(1, 21028267680), (2, 10514133840), (3, 7009422560), (4, 5257066920), (5, 4205653536), (6, 3504711280), (7, 3004038240), (8, 2628533460), (10, 2102826768), (12, 1752355640), (14, 1502019120), (15, 1401884512), (16, 1314266730), (20, 1051413384), (21, 1001346080), (24, 876177820), (28, 751009560), (30, 700942256), (32, 657133365), (35, 600807648), (40, 525706692), (42, 500673040), (48, 438088910), (49, 429148320), (56, 375504780), (60, 350471128), (70, 300403824), (80, 262853346), (84, 250336520), (96, 219044455), (98, 214574160), (105, 200269216), (112, 187752390), (120, 175235564), (140, 150201912), (147, 143049440), (160, 131426673), (168, 125168260), (196, 107287080), (210, 100134608), (224, 93876195), (240, 87617782), (245, 85829664), (280, 75100956), (294, 71524720), (336, 62584130), (392, 53643540), (420, 50067304), (480, 43808891), (490, 42914832), (560, 37550478), (588, 35762360), (672, 31292065), (735, 28609888), (784, 26821770), (840, 25033652), (980, 21457416), (1120, 18775239), (1176, 17881180), (1470, 14304944), (1568, 13410885), (1680, 12516826), (1960, 10728708), (2352, 8940590), (2940, 7152472), (3360, 6258413), (3920, 5364354), (4704, 4470295), (5880, 3576236), (7840, 2682177), (11760, 1788118), (23520, 894059)]