19805994

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{1597}}^1$

素因数の和:1671

約数の個数: 48

約数和(自身を含む): 47115432

約数和(自身を除く): 27309438

約数列:

[1, 2, 3, 6, 9, 13, 18, 26, 39, 53, 78, 106, 117, 159, 234, 318, 477, 689, 954, 1378, 1597, 2067, 3194, 4134, 4791, 6201, 9582, 12402, 14373, 20761, 28746, 41522, 62283, 84641, 124566, 169282, 186849, 253923, 373698, 507846, 761769, 1100333, 1523538, 2200666, 3300999, 6601998, 9902997, 19805994]

約数ペア:

[(1, 19805994), (2, 9902997), (3, 6601998), (6, 3300999), (9, 2200666), (13, 1523538), (18, 1100333), (26, 761769), (39, 507846), (53, 373698), (78, 253923), (106, 186849), (117, 169282), (159, 124566), (234, 84641), (318, 62283), (477, 41522), (689, 28746), (954, 20761), (1378, 14373), (1597, 12402), (2067, 9582), (3194, 6201), (4134, 4791)]