21235958780

素因数分解:

$2^2\times 5^1\times {\mathrm{881}}^1\times {\mathrm{1205219}}^1$

素因数の和:1206109

約数の個数: 24

約数和(自身を含む): 44646169680

約数和(自身を除く): 23410210900

約数列:

[1, 2, 4, 5, 10, 20, 881, 1762, 3524, 4405, 8810, 17620, 1205219, 2410438, 4820876, 6026095, 12052190, 24104380, 1061797939, 2123595878, 4247191756, 5308989695, 10617979390, 21235958780]

約数ペア:

[(1, 21235958780), (2, 10617979390), (4, 5308989695), (5, 4247191756), (10, 2123595878), (20, 1061797939), (881, 24104380), (1762, 12052190), (3524, 6026095), (4405, 4820876), (8810, 2410438), (17620, 1205219)]