21865536010

素因数分解:

$2^1\times 5^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1\times {\mathrm{997}}^1$

素因数の和:1451

約数の個数: 64

約数和(自身を含む): 40474329120

約数和(自身を除く): 18608793110

約数列:

[1, 2, 5, 10, 61, 122, 157, 229, 305, 314, 458, 610, 785, 997, 1145, 1570, 1994, 2290, 4985, 9577, 9970, 13969, 19154, 27938, 35953, 47885, 60817, 69845, 71906, 95770, 121634, 139690, 156529, 179765, 228313, 304085, 313058, 359530, 456626, 608170, 782645, 1141565, 1565290, 2193133, 2283130, 4386266, 9548269, 10965665, 13927093, 19096538, 21931330, 27854186, 35845141, 47741345, 69635465, 71690282, 95482690, 139270930, 179225705, 358451410, 2186553601, 4373107202, 10932768005, 21865536010]

約数ペア:

[(1, 21865536010), (2, 10932768005), (5, 4373107202), (10, 2186553601), (61, 358451410), (122, 179225705), (157, 139270930), (229, 95482690), (305, 71690282), (314, 69635465), (458, 47741345), (610, 35845141), (785, 27854186), (997, 21931330), (1145, 19096538), (1570, 13927093), (1994, 10965665), (2290, 9548269), (4985, 4386266), (9577, 2283130), (9970, 2193133), (13969, 1565290), (19154, 1141565), (27938, 782645), (35953, 608170), (47885, 456626), (60817, 359530), (69845, 313058), (71906, 304085), (95770, 228313), (121634, 179765), (139690, 156529)]