20381668

素因数分解:

$2^2\times {\mathrm{59}}^1\times {\mathrm{67}}^1\times {\mathrm{1289}}^1$

素因数の和:1419

約数の個数: 24

約数和(自身を含む): 36842400

約数和(自身を除く): 16460732

約数列:

[1, 2, 4, 59, 67, 118, 134, 236, 268, 1289, 2578, 3953, 5156, 7906, 15812, 76051, 86363, 152102, 172726, 304204, 345452, 5095417, 10190834, 20381668]

約数ペア:

[(1, 20381668), (2, 10190834), (4, 5095417), (59, 345452), (67, 304204), (118, 172726), (134, 152102), (236, 86363), (268, 76051), (1289, 15812), (2578, 7906), (3953, 5156)]