21428790

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{193}}^1\times {\mathrm{3701}}^1$

素因数の和:3904

約数の個数: 32

約数和(自身を含む): 51709536

約数和(自身を除く): 30280746

約数列:

[1, 2, 3, 5, 6, 10, 15, 30, 193, 386, 579, 965, 1158, 1930, 2895, 3701, 5790, 7402, 11103, 18505, 22206, 37010, 55515, 111030, 714293, 1428586, 2142879, 3571465, 4285758, 7142930, 10714395, 21428790]

約数ペア:

[(1, 21428790), (2, 10714395), (3, 7142930), (5, 4285758), (6, 3571465), (10, 2142879), (15, 1428586), (30, 714293), (193, 111030), (386, 55515), (579, 37010), (965, 22206), (1158, 18505), (1930, 11103), (2895, 7402), (3701, 5790)]