21761818

素因数分解:

$2^1\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{151}}^1\times {\mathrm{241}}^1$

素因数の和:430

約数の個数: 32

約数和(自身を含む): 37078272

約数和(自身を除く): 15316454

約数列:

[1, 2, 13, 23, 26, 46, 151, 241, 299, 302, 482, 598, 1963, 3133, 3473, 3926, 5543, 6266, 6946, 11086, 36391, 45149, 72059, 72782, 90298, 144118, 473083, 836993, 946166, 1673986, 10880909, 21761818]

約数ペア:

[(1, 21761818), (2, 10880909), (13, 1673986), (23, 946166), (26, 836993), (46, 473083), (151, 144118), (241, 90298), (299, 72782), (302, 72059), (482, 45149), (598, 36391), (1963, 11086), (3133, 6946), (3473, 6266), (3926, 5543)]