21112494

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^2\times {\mathrm{47}}^1\times {\mathrm{443}}^1$

素因数の和:521

約数の個数: 48

約数和(自身を含む): 46801152

約数和(自身を除く): 25688658

約数列:

[1, 2, 3, 6, 13, 26, 39, 47, 78, 94, 141, 169, 282, 338, 443, 507, 611, 886, 1014, 1222, 1329, 1833, 2658, 3666, 5759, 7943, 11518, 15886, 17277, 20821, 23829, 34554, 41642, 47658, 62463, 74867, 124926, 149734, 224601, 270673, 449202, 541346, 812019, 1624038, 3518749, 7037498, 10556247, 21112494]

約数ペア:

[(1, 21112494), (2, 10556247), (3, 7037498), (6, 3518749), (13, 1624038), (26, 812019), (39, 541346), (47, 449202), (78, 270673), (94, 224601), (141, 149734), (169, 124926), (282, 74867), (338, 62463), (443, 47658), (507, 41642), (611, 34554), (886, 23829), (1014, 20821), (1222, 17277), (1329, 15886), (1833, 11518), (2658, 7943), (3666, 5759)]