16855940

素因数分解:

$2^2\times 5^1\times {\mathrm{31}}^2\times {\mathrm{877}}^1$

素因数の和:948

約数の個数: 36

約数和(自身を含む): 36617868

約数和(自身を除く): 19761928

約数列:

[1, 2, 4, 5, 10, 20, 31, 62, 124, 155, 310, 620, 877, 961, 1754, 1922, 3508, 3844, 4385, 4805, 8770, 9610, 17540, 19220, 27187, 54374, 108748, 135935, 271870, 543740, 842797, 1685594, 3371188, 4213985, 8427970, 16855940]

約数ペア:

[(1, 16855940), (2, 8427970), (4, 4213985), (5, 3371188), (10, 1685594), (20, 842797), (31, 543740), (62, 271870), (124, 135935), (155, 108748), (310, 54374), (620, 27187), (877, 19220), (961, 17540), (1754, 9610), (1922, 8770), (3508, 4805), (3844, 4385)]