18666438

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{223}}^1\times {\mathrm{1993}}^1$

素因数の和:2228

約数の個数: 32

約数和(自身を含む): 42878976

約数和(自身を除く): 24212538

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 223, 446, 669, 1338, 1561, 1993, 3122, 3986, 4683, 5979, 9366, 11958, 13951, 27902, 41853, 83706, 444439, 888878, 1333317, 2666634, 3111073, 6222146, 9333219, 18666438]

約数ペア:

[(1, 18666438), (2, 9333219), (3, 6222146), (6, 3111073), (7, 2666634), (14, 1333317), (21, 888878), (42, 444439), (223, 83706), (446, 41853), (669, 27902), (1338, 13951), (1561, 11958), (1993, 9366), (3122, 5979), (3986, 4683)]