21521736840

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{10549871}}^1$

素因数の和:10549902

約数の個数: 64

約数和(自身を含む): 68363170560

約数和(自身を除く): 46841433720

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 17, 20, 24, 30, 34, 40, 51, 60, 68, 85, 102, 120, 136, 170, 204, 255, 340, 408, 510, 680, 1020, 2040, 10549871, 21099742, 31649613, 42199484, 52749355, 63299226, 84398968, 105498710, 126598452, 158248065, 179347807, 210997420, 253196904, 316496130, 358695614, 421994840, 538043421, 632992260, 717391228, 896739035, 1076086842, 1265984520, 1434782456, 1793478070, 2152173684, 2690217105, 3586956140, 4304347368, 5380434210, 7173912280, 10760868420, 21521736840]

約数ペア:

[(1, 21521736840), (2, 10760868420), (3, 7173912280), (4, 5380434210), (5, 4304347368), (6, 3586956140), (8, 2690217105), (10, 2152173684), (12, 1793478070), (15, 1434782456), (17, 1265984520), (20, 1076086842), (24, 896739035), (30, 717391228), (34, 632992260), (40, 538043421), (51, 421994840), (60, 358695614), (68, 316496130), (85, 253196904), (102, 210997420), (120, 179347807), (136, 158248065), (170, 126598452), (204, 105498710), (255, 84398968), (340, 63299226), (408, 52749355), (510, 42199484), (680, 31649613), (1020, 21099742), (2040, 10549871)]