391798197

素因数分解:

$3^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{26021}}^1$

素因数の和:26273

約数の個数: 24

約数和(自身を含む): 649509120

約数和(自身を除く): 257710923

約数列:

[1, 3, 7, 9, 21, 63, 239, 717, 1673, 2151, 5019, 15057, 26021, 78063, 182147, 234189, 546441, 1639323, 6219019, 18657057, 43533133, 55971171, 130599399, 391798197]

約数ペア:

[(1, 391798197), (3, 130599399), (7, 55971171), (9, 43533133), (21, 18657057), (63, 6219019), (239, 1639323), (717, 546441), (1673, 234189), (2151, 182147), (5019, 78063), (15057, 26021)]