861243502

素因数分解:

$2^1\times 7^4\times {\mathrm{179351}}^1$

素因数の和:179381

約数の個数: 20

約数和(自身を含む): 1507094856

約数和(自身を除く): 645851354

約数列:

[1, 2, 7, 14, 49, 98, 343, 686, 2401, 4802, 179351, 358702, 1255457, 2510914, 8788199, 17576398, 61517393, 123034786, 430621751, 861243502]

約数ペア:

[(1, 861243502), (2, 430621751), (7, 123034786), (14, 61517393), (49, 17576398), (98, 8788199), (343, 2510914), (686, 1255457), (2401, 358702), (4802, 179351)]