21809484

素因数分解:

$2^2\times 3^2\times {\mathrm{421}}^1\times {\mathrm{1439}}^1$

素因数の和:1870

約数の個数: 36

約数和(自身を含む): 55298880

約数和(自身を除く): 33489396

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 421, 842, 1263, 1439, 1684, 2526, 2878, 3789, 4317, 5052, 5756, 7578, 8634, 12951, 15156, 17268, 25902, 51804, 605819, 1211638, 1817457, 2423276, 3634914, 5452371, 7269828, 10904742, 21809484]

約数ペア:

[(1, 21809484), (2, 10904742), (3, 7269828), (4, 5452371), (6, 3634914), (9, 2423276), (12, 1817457), (18, 1211638), (36, 605819), (421, 51804), (842, 25902), (1263, 17268), (1439, 15156), (1684, 12951), (2526, 8634), (2878, 7578), (3789, 5756), (4317, 5052)]