18380336

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{97}}^1\times {\mathrm{911}}^1$

素因数の和:1029

約数の個数: 40

約数和(自身を含む): 38789184

約数和(自身を除く): 20408848

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 97, 104, 194, 208, 388, 776, 911, 1261, 1552, 1822, 2522, 3644, 5044, 7288, 10088, 11843, 14576, 20176, 23686, 47372, 88367, 94744, 176734, 189488, 353468, 706936, 1148771, 1413872, 2297542, 4595084, 9190168, 18380336]

約数ペア:

[(1, 18380336), (2, 9190168), (4, 4595084), (8, 2297542), (13, 1413872), (16, 1148771), (26, 706936), (52, 353468), (97, 189488), (104, 176734), (194, 94744), (208, 88367), (388, 47372), (776, 23686), (911, 20176), (1261, 14576), (1552, 11843), (1822, 10088), (2522, 7288), (3644, 5044)]