21000252726

素因数分解:

$2^1\times 3^3\times {\mathrm{37}}^1\times {\mathrm{41}}^1\times {\mathrm{269}}^1\times {\mathrm{953}}^1$

素因数の和:1311

約数の個数: 128

約数和(自身を含む): 49331721600

約数和(自身を除く): 28331468874

約数列:

[1, 2, 3, 6, 9, 18, 27, 37, 41, 54, 74, 82, 111, 123, 222, 246, 269, 333, 369, 538, 666, 738, 807, 953, 999, 1107, 1517, 1614, 1906, 1998, 2214, 2421, 2859, 3034, 4551, 4842, 5718, 7263, 8577, 9102, 9953, 11029, 13653, 14526, 17154, 19906, 22058, 25731, 27306, 29859, 33087, 35261, 39073, 40959, 51462, 59718, 66174, 70522, 78146, 81918, 89577, 99261, 105783, 117219, 179154, 198522, 211566, 234438, 256357, 268731, 297783, 317349, 351657, 408073, 512714, 537462, 595566, 634698, 703314, 769071, 816146, 952047, 1054971, 1224219, 1445701, 1538142, 1904094, 2109942, 2307213, 2448438, 2891402, 3672657, 4337103, 4614426, 6921639, 7345314, 8674206, 9485209, 10510637, 11017971, 13011309, 13843278, 18970418, 21021274, 22035942, 26022618, 28455627, 31531911, 39033927, 56911254, 63063822, 78067854, 85366881, 94595733, 170733762, 189191466, 256100643, 283787199, 388893569, 512201286, 567574398, 777787138, 1166680707, 2333361414, 3500042121, 7000084242, 10500126363, 21000252726]

約数ペア:

[(1, 21000252726), (2, 10500126363), (3, 7000084242), (6, 3500042121), (9, 2333361414), (18, 1166680707), (27, 777787138), (37, 567574398), (41, 512201286), (54, 388893569), (74, 283787199), (82, 256100643), (111, 189191466), (123, 170733762), (222, 94595733), (246, 85366881), (269, 78067854), (333, 63063822), (369, 56911254), (538, 39033927), (666, 31531911), (738, 28455627), (807, 26022618), (953, 22035942), (999, 21021274), (1107, 18970418), (1517, 13843278), (1614, 13011309), (1906, 11017971), (1998, 10510637), (2214, 9485209), (2421, 8674206), (2859, 7345314), (3034, 6921639), (4551, 4614426), (4842, 4337103), (5718, 3672657), (7263, 2891402), (8577, 2448438), (9102, 2307213), (9953, 2109942), (11029, 1904094), (13653, 1538142), (14526, 1445701), (17154, 1224219), (19906, 1054971), (22058, 952047), (25731, 816146), (27306, 769071), (29859, 703314), (33087, 634698), (35261, 595566), (39073, 537462), (40959, 512714), (51462, 408073), (59718, 351657), (66174, 317349), (70522, 297783), (78146, 268731), (81918, 256357), (89577, 234438), (99261, 211566), (105783, 198522), (117219, 179154)]