18719764

素因数分解:

$2^2\times 7^2\times {\mathrm{149}}^1\times {\mathrm{641}}^1$

素因数の和:808

約数の個数: 36

約数和(自身を含む): 38423700

約数和(自身を除く): 19703936

約数列:

[1, 2, 4, 7, 14, 28, 49, 98, 149, 196, 298, 596, 641, 1043, 1282, 2086, 2564, 4172, 4487, 7301, 8974, 14602, 17948, 29204, 31409, 62818, 95509, 125636, 191018, 382036, 668563, 1337126, 2674252, 4679941, 9359882, 18719764]

約数ペア:

[(1, 18719764), (2, 9359882), (4, 4679941), (7, 2674252), (14, 1337126), (28, 668563), (49, 382036), (98, 191018), (149, 125636), (196, 95509), (298, 62818), (596, 31409), (641, 29204), (1043, 17948), (1282, 14602), (2086, 8974), (2564, 7301), (4172, 4487)]