21565570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{8731}}^1$

素因数の和:8770

約数の個数: 32

約数和(自身を含む): 44009280

約数和(自身を除く): 22443710

約数列:

[1, 2, 5, 10, 13, 19, 26, 38, 65, 95, 130, 190, 247, 494, 1235, 2470, 8731, 17462, 43655, 87310, 113503, 165889, 227006, 331778, 567515, 829445, 1135030, 1658890, 2156557, 4313114, 10782785, 21565570]

約数ペア:

[(1, 21565570), (2, 10782785), (5, 4313114), (10, 2156557), (13, 1658890), (19, 1135030), (26, 829445), (38, 567515), (65, 331778), (95, 227006), (130, 165889), (190, 113503), (247, 87310), (494, 43655), (1235, 17462), (2470, 8731)]