19297655

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{157}}^1$

素因数の和:267

約数の個数: 32

約数和(自身を含む): 26331648

約数和(自身を除く): 7033993

約数列:

[1, 5, 13, 31, 61, 65, 155, 157, 305, 403, 785, 793, 1891, 2015, 2041, 3965, 4867, 9455, 9577, 10205, 24335, 24583, 47885, 63271, 122915, 124501, 296887, 316355, 622505, 1484435, 3859531, 19297655]

約数ペア:

[(1, 19297655), (5, 3859531), (13, 1484435), (31, 622505), (61, 316355), (65, 296887), (155, 124501), (157, 122915), (305, 63271), (403, 47885), (785, 24583), (793, 24335), (1891, 10205), (2015, 9577), (2041, 9455), (3965, 4867)]