21186879010

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{31}}^1\times {\mathrm{139}}^1\times {\mathrm{44699}}^1$

素因数の和:44887

約数の個数: 64

約数和(自身を含む): 43255296000

約数和(自身を除く): 22068416990

約数列:

[1, 2, 5, 10, 11, 22, 31, 55, 62, 110, 139, 155, 278, 310, 341, 682, 695, 1390, 1529, 1705, 3058, 3410, 4309, 7645, 8618, 15290, 21545, 43090, 44699, 47399, 89398, 94798, 223495, 236995, 446990, 473990, 491689, 983378, 1385669, 2458445, 2771338, 4916890, 6213161, 6928345, 12426322, 13856690, 15242359, 30484718, 31065805, 62131610, 68344771, 76211795, 136689542, 152423590, 192607991, 341723855, 385215982, 683447710, 963039955, 1926079910, 2118687901, 4237375802, 10593439505, 21186879010]

約数ペア:

[(1, 21186879010), (2, 10593439505), (5, 4237375802), (10, 2118687901), (11, 1926079910), (22, 963039955), (31, 683447710), (55, 385215982), (62, 341723855), (110, 192607991), (139, 152423590), (155, 136689542), (278, 76211795), (310, 68344771), (341, 62131610), (682, 31065805), (695, 30484718), (1390, 15242359), (1529, 13856690), (1705, 12426322), (3058, 6928345), (3410, 6213161), (4309, 4916890), (7645, 2771338), (8618, 2458445), (15290, 1385669), (21545, 983378), (43090, 491689), (44699, 473990), (47399, 446990), (89398, 236995), (94798, 223495)]