81477921

素因数分解:

$3^1\times 7^1\times {\mathrm{983}}^1\times {\mathrm{3947}}^1$

素因数の和:4940

約数の個数: 16

約数和(自身を含む): 124314624

約数和(自身を除く): 42836703

約数列:

[1, 3, 7, 21, 983, 2949, 3947, 6881, 11841, 20643, 27629, 82887, 3879901, 11639703, 27159307, 81477921]

約数ペア:

[(1, 81477921), (3, 27159307), (7, 11639703), (21, 3879901), (983, 82887), (2949, 27629), (3947, 20643), (6881, 11841)]