21356978520

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{177974821}}^1$

素因数の和:177974835

約数の個数: 32

約数和(自身を含む): 64070935920

約数和(自身を除く): 42713957400

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 177974821, 355949642, 533924463, 711899284, 889874105, 1067848926, 1423798568, 1779748210, 2135697852, 2669622315, 3559496420, 4271395704, 5339244630, 7118992840, 10678489260, 21356978520]

約数ペア:

[(1, 21356978520), (2, 10678489260), (3, 7118992840), (4, 5339244630), (5, 4271395704), (6, 3559496420), (8, 2669622315), (10, 2135697852), (12, 1779748210), (15, 1423798568), (20, 1067848926), (24, 889874105), (30, 711899284), (40, 533924463), (60, 355949642), (120, 177974821)]