20556813

素因数分解:

$3^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1\times {\mathrm{4703}}^1$

素因数の和:4784

約数の個数: 16

約数和(自身を含む): 28901376

約数和(自身を除く): 8344563

約数列:

[1, 3, 31, 47, 93, 141, 1457, 4371, 4703, 14109, 145793, 221041, 437379, 663123, 6852271, 20556813]

約数ペア:

[(1, 20556813), (3, 6852271), (31, 663123), (47, 437379), (93, 221041), (141, 145793), (1457, 14109), (4371, 4703)]