21713760

素因数分解:

$2^5\times 3^2\times 5^1\times {\mathrm{17}}^1\times {\mathrm{887}}^1$

素因数の和:925

約数の個数: 144

約数和(自身を含む): 78545376

約数和(自身を除く): 56831616

約数列:

[1, 2, 3, 4, 5, 6, 8, 9, 10, 12, 15, 16, 17, 18, 20, 24, 30, 32, 34, 36, 40, 45, 48, 51, 60, 68, 72, 80, 85, 90, 96, 102, 120, 136, 144, 153, 160, 170, 180, 204, 240, 255, 272, 288, 306, 340, 360, 408, 480, 510, 544, 612, 680, 720, 765, 816, 887, 1020, 1224, 1360, 1440, 1530, 1632, 1774, 2040, 2448, 2661, 2720, 3060, 3548, 4080, 4435, 4896, 5322, 6120, 7096, 7983, 8160, 8870, 10644, 12240, 13305, 14192, 15079, 15966, 17740, 21288, 24480, 26610, 28384, 30158, 31932, 35480, 39915, 42576, 45237, 53220, 60316, 63864, 70960, 75395, 79830, 85152, 90474, 106440, 120632, 127728, 135711, 141920, 150790, 159660, 180948, 212880, 226185, 241264, 255456, 271422, 301580, 319320, 361896, 425760, 452370, 482528, 542844, 603160, 638640, 678555, 723792, 904740, 1085688, 1206320, 1277280, 1357110, 1447584, 1809480, 2171376, 2412640, 2714220, 3618960, 4342752, 5428440, 7237920, 10856880, 21713760]

約数ペア:

[(1, 21713760), (2, 10856880), (3, 7237920), (4, 5428440), (5, 4342752), (6, 3618960), (8, 2714220), (9, 2412640), (10, 2171376), (12, 1809480), (15, 1447584), (16, 1357110), (17, 1277280), (18, 1206320), (20, 1085688), (24, 904740), (30, 723792), (32, 678555), (34, 638640), (36, 603160), (40, 542844), (45, 482528), (48, 452370), (51, 425760), (60, 361896), (68, 319320), (72, 301580), (80, 271422), (85, 255456), (90, 241264), (96, 226185), (102, 212880), (120, 180948), (136, 159660), (144, 150790), (153, 141920), (160, 135711), (170, 127728), (180, 120632), (204, 106440), (240, 90474), (255, 85152), (272, 79830), (288, 75395), (306, 70960), (340, 63864), (360, 60316), (408, 53220), (480, 45237), (510, 42576), (544, 39915), (612, 35480), (680, 31932), (720, 30158), (765, 28384), (816, 26610), (887, 24480), (1020, 21288), (1224, 17740), (1360, 15966), (1440, 15079), (1530, 14192), (1632, 13305), (1774, 12240), (2040, 10644), (2448, 8870), (2661, 8160), (2720, 7983), (3060, 7096), (3548, 6120), (4080, 5322), (4435, 4896)]