393121746

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{139}}^1\times {\mathrm{2213}}^1$

素因数の和:2431

約数の個数: 48

約数和(自身を含む): 870367680

約数和(自身を除く): 477245934

約数列:

[1, 2, 3, 6, 9, 18, 71, 139, 142, 213, 278, 417, 426, 639, 834, 1251, 1278, 2213, 2502, 4426, 6639, 9869, 13278, 19738, 19917, 29607, 39834, 59214, 88821, 157123, 177642, 307607, 314246, 471369, 615214, 922821, 942738, 1414107, 1845642, 2768463, 2828214, 5536926, 21840097, 43680194, 65520291, 131040582, 196560873, 393121746]

約数ペア:

[(1, 393121746), (2, 196560873), (3, 131040582), (6, 65520291), (9, 43680194), (18, 21840097), (71, 5536926), (139, 2828214), (142, 2768463), (213, 1845642), (278, 1414107), (417, 942738), (426, 922821), (639, 615214), (834, 471369), (1251, 314246), (1278, 307607), (2213, 177642), (2502, 157123), (4426, 88821), (6639, 59214), (9869, 39834), (13278, 29607), (19738, 19917)]