21201100

素因数分解:

$2^2\times 5^2\times {\mathrm{41}}^1\times {\mathrm{5171}}^1$

素因数の和:5226

約数の個数: 36

約数和(自身を含む): 47137608

約数和(自身を除く): 25936508

約数列:

[1, 2, 4, 5, 10, 20, 25, 41, 50, 82, 100, 164, 205, 410, 820, 1025, 2050, 4100, 5171, 10342, 20684, 25855, 51710, 103420, 129275, 212011, 258550, 424022, 517100, 848044, 1060055, 2120110, 4240220, 5300275, 10600550, 21201100]

約数ペア:

[(1, 21201100), (2, 10600550), (4, 5300275), (5, 4240220), (10, 2120110), (20, 1060055), (25, 848044), (41, 517100), (50, 424022), (82, 258550), (100, 212011), (164, 129275), (205, 103420), (410, 51710), (820, 25855), (1025, 20684), (2050, 10342), (4100, 5171)]