21129876

素因数分解:

$2^2\times 3^3\times {\mathrm{179}}^1\times {\mathrm{1093}}^1$

素因数の和:1285

約数の個数: 48

約数和(自身を含む): 55137600

約数和(自身を除く): 34007724

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 27, 36, 54, 108, 179, 358, 537, 716, 1074, 1093, 1611, 2148, 2186, 3222, 3279, 4372, 4833, 6444, 6558, 9666, 9837, 13116, 19332, 19674, 29511, 39348, 59022, 118044, 195647, 391294, 586941, 782588, 1173882, 1760823, 2347764, 3521646, 5282469, 7043292, 10564938, 21129876]

約数ペア:

[(1, 21129876), (2, 10564938), (3, 7043292), (4, 5282469), (6, 3521646), (9, 2347764), (12, 1760823), (18, 1173882), (27, 782588), (36, 586941), (54, 391294), (108, 195647), (179, 118044), (358, 59022), (537, 39348), (716, 29511), (1074, 19674), (1093, 19332), (1611, 13116), (2148, 9837), (2186, 9666), (3222, 6558), (3279, 6444), (4372, 4833)]