12920931

素因数分解:

$3^3\times {\mathrm{19}}^1\times {\mathrm{89}}^1\times {\mathrm{283}}^1$

素因数の和:400

約数の個数: 32

約数和(自身を含む): 20448000

約数和(自身を除く): 7527069

約数列:

[1, 3, 9, 19, 27, 57, 89, 171, 267, 283, 513, 801, 849, 1691, 2403, 2547, 5073, 5377, 7641, 15219, 16131, 25187, 45657, 48393, 75561, 145179, 226683, 478553, 680049, 1435659, 4306977, 12920931]

約数ペア:

[(1, 12920931), (3, 4306977), (9, 1435659), (19, 680049), (27, 478553), (57, 226683), (89, 145179), (171, 75561), (267, 48393), (283, 45657), (513, 25187), (801, 16131), (849, 15219), (1691, 7641), (2403, 5377), (2547, 5073)]