21629140

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{2029}}^1$

素因数の和:2092

約数の個数: 48

約数和(自身を含む): 50132880

約数和(自身を除く): 28503740

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 41, 52, 65, 82, 130, 164, 205, 260, 410, 533, 820, 1066, 2029, 2132, 2665, 4058, 5330, 8116, 10145, 10660, 20290, 26377, 40580, 52754, 83189, 105508, 131885, 166378, 263770, 332756, 415945, 527540, 831890, 1081457, 1663780, 2162914, 4325828, 5407285, 10814570, 21629140]

約数ペア:

[(1, 21629140), (2, 10814570), (4, 5407285), (5, 4325828), (10, 2162914), (13, 1663780), (20, 1081457), (26, 831890), (41, 527540), (52, 415945), (65, 332756), (82, 263770), (130, 166378), (164, 131885), (205, 105508), (260, 83189), (410, 52754), (533, 40580), (820, 26377), (1066, 20290), (2029, 10660), (2132, 10145), (2665, 8116), (4058, 5330)]