21570297925

素因数分解:

$5^2\times {\mathrm{11}}^2\times {\mathrm{37}}^1\times {\mathrm{439}}^2$

素因数の和:947

約数の個数: 54

約数和(自身を含む): 30263306514

約数和(自身を除く): 8693008589

約数列:

[1, 5, 11, 25, 37, 55, 121, 185, 275, 407, 439, 605, 925, 2035, 2195, 3025, 4477, 4829, 10175, 10975, 16243, 22385, 24145, 53119, 81215, 111925, 120725, 178673, 192721, 265595, 406075, 893365, 963605, 1327975, 1965403, 2119931, 4466825, 4818025, 7130677, 9827015, 10599655, 23319241, 35653385, 49135075, 52998275, 78437447, 116596205, 178266925, 392187235, 582981025, 862811917, 1960936175, 4314059585, 21570297925]

約数ペア:

[(1, 21570297925), (5, 4314059585), (11, 1960936175), (25, 862811917), (37, 582981025), (55, 392187235), (121, 178266925), (185, 116596205), (275, 78437447), (407, 52998275), (439, 49135075), (605, 35653385), (925, 23319241), (2035, 10599655), (2195, 9827015), (3025, 7130677), (4477, 4818025), (4829, 4466825), (10175, 2119931), (10975, 1965403), (16243, 1327975), (22385, 963605), (24145, 893365), (53119, 406075), (81215, 265595), (111925, 192721), (120725, 178673)]