21035412

素因数分解:

$2^2\times 3^2\times {\mathrm{443}}^1\times {\mathrm{1319}}^1$

素因数の和:1772

約数の個数: 36

約数和(自身を含む): 53333280

約数和(自身を除く): 32297868

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 443, 886, 1319, 1329, 1772, 2638, 2658, 3957, 3987, 5276, 5316, 7914, 7974, 11871, 15828, 15948, 23742, 47484, 584317, 1168634, 1752951, 2337268, 3505902, 5258853, 7011804, 10517706, 21035412]

約数ペア:

[(1, 21035412), (2, 10517706), (3, 7011804), (4, 5258853), (6, 3505902), (9, 2337268), (12, 1752951), (18, 1168634), (36, 584317), (443, 47484), (886, 23742), (1319, 15948), (1329, 15828), (1772, 11871), (2638, 7974), (2658, 7914), (3957, 5316), (3987, 5276)]