21513250

素因数分解:

$2^1\times 5^3\times {\mathrm{11}}^1\times {\mathrm{7823}}^1$

素因数の和:7851

約数の個数: 32

約数和(自身を含む): 43939584

約数和(自身を除く): 22426334

約数列:

[1, 2, 5, 10, 11, 22, 25, 50, 55, 110, 125, 250, 275, 550, 1375, 2750, 7823, 15646, 39115, 78230, 86053, 172106, 195575, 391150, 430265, 860530, 977875, 1955750, 2151325, 4302650, 10756625, 21513250]

約数ペア:

[(1, 21513250), (2, 10756625), (5, 4302650), (10, 2151325), (11, 1955750), (22, 977875), (25, 860530), (50, 430265), (55, 391150), (110, 195575), (125, 172106), (250, 86053), (275, 78230), (550, 39115), (1375, 15646), (2750, 7823)]