11820417

素因数分解:

$3^1\times 7^2\times {\mathrm{191}}^1\times {\mathrm{421}}^1$

素因数の和:629

約数の個数: 24

約数和(自身を含む): 18473472

約数和(自身を除く): 6653055

約数列:

[1, 3, 7, 21, 49, 147, 191, 421, 573, 1263, 1337, 2947, 4011, 8841, 9359, 20629, 28077, 61887, 80411, 241233, 562877, 1688631, 3940139, 11820417]

約数ペア:

[(1, 11820417), (3, 3940139), (7, 1688631), (21, 562877), (49, 241233), (147, 80411), (191, 61887), (421, 28077), (573, 20629), (1263, 9359), (1337, 8841), (2947, 4011)]