18953493

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{61}}^1\times {\mathrm{257}}^1$

素因数の和:365

約数の個数: 32

約数和(自身を含む): 28664832

約数和(自身を除く): 9711339

約数列:

[1, 3, 13, 31, 39, 61, 93, 183, 257, 403, 771, 793, 1209, 1891, 2379, 3341, 5673, 7967, 10023, 15677, 23901, 24583, 47031, 73749, 103571, 203801, 310713, 485987, 611403, 1457961, 6317831, 18953493]

約数ペア:

[(1, 18953493), (3, 6317831), (13, 1457961), (31, 611403), (39, 485987), (61, 310713), (93, 203801), (183, 103571), (257, 73749), (403, 47031), (771, 24583), (793, 23901), (1209, 15677), (1891, 10023), (2379, 7967), (3341, 5673)]