21806904250

素因数分解:

$2^1\times 5^3\times {\mathrm{4987}}^1\times {\mathrm{17491}}^1$

素因数の和:22495

約数の個数: 32

約数和(自身を含む): 40833044928

約数和(自身を除く): 19026140678

約数列:

[1, 2, 5, 10, 25, 50, 125, 250, 4987, 9974, 17491, 24935, 34982, 49870, 87455, 124675, 174910, 249350, 437275, 623375, 874550, 1246750, 2186375, 4372750, 87227617, 174455234, 436138085, 872276170, 2180690425, 4361380850, 10903452125, 21806904250]

約数ペア:

[(1, 21806904250), (2, 10903452125), (5, 4361380850), (10, 2180690425), (25, 872276170), (50, 436138085), (125, 174455234), (250, 87227617), (4987, 4372750), (9974, 2186375), (17491, 1246750), (24935, 874550), (34982, 623375), (49870, 437275), (87455, 249350), (124675, 174910)]