21154991620

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{59}}^1\times {\mathrm{2561137}}^1$

素因数の和:2561212

約数の個数: 48

約数和(自身を含む): 51632542080

約数和(自身を除く): 30477550460

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 59, 70, 118, 140, 236, 295, 413, 590, 826, 1180, 1652, 2065, 4130, 8260, 2561137, 5122274, 10244548, 12805685, 17927959, 25611370, 35855918, 51222740, 71711836, 89639795, 151107083, 179279590, 302214166, 358559180, 604428332, 755535415, 1057749581, 1511070830, 2115499162, 3022141660, 4230998324, 5288747905, 10577495810, 21154991620]

約数ペア:

[(1, 21154991620), (2, 10577495810), (4, 5288747905), (5, 4230998324), (7, 3022141660), (10, 2115499162), (14, 1511070830), (20, 1057749581), (28, 755535415), (35, 604428332), (59, 358559180), (70, 302214166), (118, 179279590), (140, 151107083), (236, 89639795), (295, 71711836), (413, 51222740), (590, 35855918), (826, 25611370), (1180, 17927959), (1652, 12805685), (2065, 10244548), (4130, 5122274), (8260, 2561137)]