21666258

素因数分解:

$2^1\times 3^3\times {\mathrm{607}}^1\times {\mathrm{661}}^1$

素因数の和:1279

約数の個数: 32

約数和(自身を含む): 48299520

約数和(自身を除く): 26633262

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 607, 661, 1214, 1322, 1821, 1983, 3642, 3966, 5463, 5949, 10926, 11898, 16389, 17847, 32778, 35694, 401227, 802454, 1203681, 2407362, 3611043, 7222086, 10833129, 21666258]

約数ペア:

[(1, 21666258), (2, 10833129), (3, 7222086), (6, 3611043), (9, 2407362), (18, 1203681), (27, 802454), (54, 401227), (607, 35694), (661, 32778), (1214, 17847), (1322, 16389), (1821, 11898), (1983, 10926), (3642, 5949), (3966, 5463)]