78691431

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{288247}}^1$

素因数の和:288270

約数の個数: 16

約数和(自身を含む): 129135104

約数和(自身を除く): 50443673

約数列:

[1, 3, 7, 13, 21, 39, 91, 273, 288247, 864741, 2017729, 3747211, 6053187, 11241633, 26230477, 78691431]

約数ペア:

[(1, 78691431), (3, 26230477), (7, 11241633), (13, 6053187), (21, 3747211), (39, 2017729), (91, 864741), (273, 288247)]