21809180476

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{4041731}}^1$

素因数の和:4041825

約数の個数: 24

約数和(自身を含む): 40740658560

約数和(自身を除く): 18931478084

約数列:

[1, 2, 4, 19, 38, 71, 76, 142, 284, 1349, 2698, 5396, 4041731, 8083462, 16166924, 76792889, 153585778, 286962901, 307171556, 573925802, 1147851604, 5452295119, 10904590238, 21809180476]

約数ペア:

[(1, 21809180476), (2, 10904590238), (4, 5452295119), (19, 1147851604), (38, 573925802), (71, 307171556), (76, 286962901), (142, 153585778), (284, 76792889), (1349, 16166924), (2698, 8083462), (5396, 4041731)]