206519385891

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{20639}}^1\times {\mathrm{36653}}^1$

素因数の和:57315

約数の個数: 32

約数和(自身を含む): 338929274880

約数和(自身を除く): 132409888989

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 20639, 36653, 61917, 109959, 144473, 256571, 268307, 433419, 476489, 769713, 804921, 1429467, 1878149, 3335423, 5634447, 10006269, 756481267, 2269443801, 5295368869, 9834256471, 15886106607, 29502769413, 68839795297, 206519385891]

約数ペア:

[(1, 206519385891), (3, 68839795297), (7, 29502769413), (13, 15886106607), (21, 9834256471), (39, 5295368869), (91, 2269443801), (273, 756481267), (20639, 10006269), (36653, 5634447), (61917, 3335423), (109959, 1878149), (144473, 1429467), (256571, 804921), (268307, 769713), (433419, 476489)]