21075360

素因数分解:

$2^5\times 3^1\times 5^1\times {\mathrm{23}}^2\times {\mathrm{83}}^1$

素因数の和:147

約数の個数: 144

約数和(自身を含む): 70235424

約数和(自身を除く): 49160064

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 16, 20, 23, 24, 30, 32, 40, 46, 48, 60, 69, 80, 83, 92, 96, 115, 120, 138, 160, 166, 184, 230, 240, 249, 276, 332, 345, 368, 415, 460, 480, 498, 529, 552, 664, 690, 736, 830, 920, 996, 1058, 1104, 1245, 1328, 1380, 1587, 1660, 1840, 1909, 1992, 2116, 2208, 2490, 2645, 2656, 2760, 3174, 3320, 3680, 3818, 3984, 4232, 4980, 5290, 5520, 5727, 6348, 6640, 7636, 7935, 7968, 8464, 9545, 9960, 10580, 11040, 11454, 12696, 13280, 15272, 15870, 16928, 19090, 19920, 21160, 22908, 25392, 28635, 30544, 31740, 38180, 39840, 42320, 43907, 45816, 50784, 57270, 61088, 63480, 76360, 84640, 87814, 91632, 114540, 126960, 131721, 152720, 175628, 183264, 219535, 229080, 253920, 263442, 305440, 351256, 439070, 458160, 526884, 658605, 702512, 878140, 916320, 1053768, 1317210, 1405024, 1756280, 2107536, 2634420, 3512560, 4215072, 5268840, 7025120, 10537680, 21075360]

約数ペア:

[(1, 21075360), (2, 10537680), (3, 7025120), (4, 5268840), (5, 4215072), (6, 3512560), (8, 2634420), (10, 2107536), (12, 1756280), (15, 1405024), (16, 1317210), (20, 1053768), (23, 916320), (24, 878140), (30, 702512), (32, 658605), (40, 526884), (46, 458160), (48, 439070), (60, 351256), (69, 305440), (80, 263442), (83, 253920), (92, 229080), (96, 219535), (115, 183264), (120, 175628), (138, 152720), (160, 131721), (166, 126960), (184, 114540), (230, 91632), (240, 87814), (249, 84640), (276, 76360), (332, 63480), (345, 61088), (368, 57270), (415, 50784), (460, 45816), (480, 43907), (498, 42320), (529, 39840), (552, 38180), (664, 31740), (690, 30544), (736, 28635), (830, 25392), (920, 22908), (996, 21160), (1058, 19920), (1104, 19090), (1245, 16928), (1328, 15870), (1380, 15272), (1587, 13280), (1660, 12696), (1840, 11454), (1909, 11040), (1992, 10580), (2116, 9960), (2208, 9545), (2490, 8464), (2645, 7968), (2656, 7935), (2760, 7636), (3174, 6640), (3320, 6348), (3680, 5727), (3818, 5520), (3984, 5290), (4232, 4980)]