21173628

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{443}}^1\times {\mathrm{569}}^1$

素因数の和:1026

約数の個数: 48

約数和(自身を含む): 56689920

約数和(自身を除く): 35516292

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 443, 569, 886, 1138, 1329, 1707, 1772, 2276, 2658, 3101, 3414, 3983, 5316, 6202, 6828, 7966, 9303, 11949, 12404, 15932, 18606, 23898, 37212, 47796, 252067, 504134, 756201, 1008268, 1512402, 1764469, 3024804, 3528938, 5293407, 7057876, 10586814, 21173628]

約数ペア:

[(1, 21173628), (2, 10586814), (3, 7057876), (4, 5293407), (6, 3528938), (7, 3024804), (12, 1764469), (14, 1512402), (21, 1008268), (28, 756201), (42, 504134), (84, 252067), (443, 47796), (569, 37212), (886, 23898), (1138, 18606), (1329, 15932), (1707, 12404), (1772, 11949), (2276, 9303), (2658, 7966), (3101, 6828), (3414, 6202), (3983, 5316)]