20485978

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{8059}}^1$

素因数の和:8133

約数の個数: 16

約数和(自身を含む): 32497920

約数和(自身を除く): 12011942

約数列:

[1, 2, 31, 41, 62, 82, 1271, 2542, 8059, 16118, 249829, 330419, 499658, 660838, 10242989, 20485978]

約数ペア:

[(1, 20485978), (2, 10242989), (31, 660838), (41, 499658), (62, 330419), (82, 249829), (1271, 16118), (2542, 8059)]