16869820

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^2\times {\mathrm{6971}}^1$

素因数の和:7002

約数の個数: 36

約数和(自身を含む): 38945592

約数和(自身を除く): 22075772

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 44, 55, 110, 121, 220, 242, 484, 605, 1210, 2420, 6971, 13942, 27884, 34855, 69710, 76681, 139420, 153362, 306724, 383405, 766810, 843491, 1533620, 1686982, 3373964, 4217455, 8434910, 16869820]

約数ペア:

[(1, 16869820), (2, 8434910), (4, 4217455), (5, 3373964), (10, 1686982), (11, 1533620), (20, 843491), (22, 766810), (44, 383405), (55, 306724), (110, 153362), (121, 139420), (220, 76681), (242, 69710), (484, 34855), (605, 27884), (1210, 13942), (2420, 6971)]