51345009

素因数分解:

$3^4\times {\mathrm{47}}^1\times {\mathrm{13487}}^1$

素因数の和:13546

約数の個数: 20

約数和(自身を含む): 78338304

約数和(自身を除く): 26993295

約数列:

[1, 3, 9, 27, 47, 81, 141, 423, 1269, 3807, 13487, 40461, 121383, 364149, 633889, 1092447, 1901667, 5705001, 17115003, 51345009]

約数ペア:

[(1, 51345009), (3, 17115003), (9, 5705001), (27, 1901667), (47, 1092447), (81, 633889), (141, 364149), (423, 121383), (1269, 40461), (3807, 13487)]