20571918

素因数分解:

$2^1\times 3^1\times {\mathrm{491}}^1\times {\mathrm{6983}}^1$

素因数の和:7479

約数の個数: 16

約数和(自身を含む): 41233536

約数和(自身を除く): 20661618

約数列:

[1, 2, 3, 6, 491, 982, 1473, 2946, 6983, 13966, 20949, 41898, 3428653, 6857306, 10285959, 20571918]

約数ペア:

[(1, 20571918), (2, 10285959), (3, 6857306), (6, 3428653), (491, 41898), (982, 20949), (1473, 13966), (2946, 6983)]