21319100

素因数分解:

$2^2\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19381}}^1$

素因数の和:19406

約数の個数: 36

約数和(自身を含む): 50470728

約数和(自身を除く): 29151628

約数列:

[1, 2, 4, 5, 10, 11, 20, 22, 25, 44, 50, 55, 100, 110, 220, 275, 550, 1100, 19381, 38762, 77524, 96905, 193810, 213191, 387620, 426382, 484525, 852764, 969050, 1065955, 1938100, 2131910, 4263820, 5329775, 10659550, 21319100]

約数ペア:

[(1, 21319100), (2, 10659550), (4, 5329775), (5, 4263820), (10, 2131910), (11, 1938100), (20, 1065955), (22, 969050), (25, 852764), (44, 484525), (50, 426382), (55, 387620), (100, 213191), (110, 193810), (220, 96905), (275, 77524), (550, 38762), (1100, 19381)]