21746450

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{2081}}^1$

素因数の和:2123

約数の個数: 48

約数和(自身を含む): 46470240

約数和(自身を除く): 24723790

約数列:

[1, 2, 5, 10, 11, 19, 22, 25, 38, 50, 55, 95, 110, 190, 209, 275, 418, 475, 550, 950, 1045, 2081, 2090, 4162, 5225, 10405, 10450, 20810, 22891, 39539, 45782, 52025, 79078, 104050, 114455, 197695, 228910, 395390, 434929, 572275, 869858, 988475, 1144550, 1976950, 2174645, 4349290, 10873225, 21746450]

約数ペア:

[(1, 21746450), (2, 10873225), (5, 4349290), (10, 2174645), (11, 1976950), (19, 1144550), (22, 988475), (25, 869858), (38, 572275), (50, 434929), (55, 395390), (95, 228910), (110, 197695), (190, 114455), (209, 104050), (275, 79078), (418, 52025), (475, 45782), (550, 39539), (950, 22891), (1045, 20810), (2081, 10450), (2090, 10405), (4162, 5225)]