19982042

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{101}}^1\times {\mathrm{3191}}^1$

素因数の和:3325

約数の個数: 16

約数和(自身を含む): 31256064

約数和(自身を除く): 11274022

約数列:

[1, 2, 31, 62, 101, 202, 3131, 3191, 6262, 6382, 98921, 197842, 322291, 644582, 9991021, 19982042]

約数ペア:

[(1, 19982042), (2, 9991021), (31, 644582), (62, 322291), (101, 197842), (202, 98921), (3131, 6382), (3191, 6262)]