19620955

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{61}}^1\times {\mathrm{2797}}^1$

素因数の和:2886

約数の個数: 16

約数和(自身を含む): 24980544

約数和(自身を除く): 5359589

約数列:

[1, 5, 23, 61, 115, 305, 1403, 2797, 7015, 13985, 64331, 170617, 321655, 853085, 3924191, 19620955]

約数ペア:

[(1, 19620955), (5, 3924191), (23, 853085), (61, 321655), (115, 170617), (305, 64331), (1403, 13985), (2797, 7015)]