389495079

素因数分解:

$3^2\times {\mathrm{19}}^1\times {\mathrm{491}}^1\times {\mathrm{4639}}^1$

素因数の和:5155

約数の個数: 24

約数和(自身を含む): 593548800

約数和(自身を除く): 204053721

約数列:

[1, 3, 9, 19, 57, 171, 491, 1473, 4419, 4639, 9329, 13917, 27987, 41751, 83961, 88141, 264423, 793269, 2277749, 6833247, 20499741, 43277231, 129831693, 389495079]

約数ペア:

[(1, 389495079), (3, 129831693), (9, 43277231), (19, 20499741), (57, 6833247), (171, 2277749), (491, 793269), (1473, 264423), (4419, 88141), (4639, 83961), (9329, 41751), (13917, 27987)]