21961654

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{4517}}^1$

素因数の和:4560

約数の個数: 32

約数和(自身を含む): 40987296

約数和(自身を除く): 19025642

約数列:

[1, 2, 11, 13, 17, 22, 26, 34, 143, 187, 221, 286, 374, 442, 2431, 4517, 4862, 9034, 49687, 58721, 76789, 99374, 117442, 153578, 645931, 844679, 998257, 1291862, 1689358, 1996514, 10980827, 21961654]

約数ペア:

[(1, 21961654), (2, 10980827), (11, 1996514), (13, 1689358), (17, 1291862), (22, 998257), (26, 844679), (34, 645931), (143, 153578), (187, 117442), (221, 99374), (286, 76789), (374, 58721), (442, 49687), (2431, 9034), (4517, 4862)]