19710015

素因数分解:

$3^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{1657}}^1$

素因数の和:1739

約数の個数: 32

約数和(自身を含む): 34539456

約数和(自身を除く): 14829441

約数列:

[1, 3, 5, 13, 15, 39, 61, 65, 183, 195, 305, 793, 915, 1657, 2379, 3965, 4971, 8285, 11895, 21541, 24855, 64623, 101077, 107705, 303231, 323115, 505385, 1314001, 1516155, 3942003, 6570005, 19710015]

約数ペア:

[(1, 19710015), (3, 6570005), (5, 3942003), (13, 1516155), (15, 1314001), (39, 505385), (61, 323115), (65, 303231), (183, 107705), (195, 101077), (305, 64623), (793, 24855), (915, 21541), (1657, 11895), (2379, 8285), (3965, 4971)]