19695741

素因数分解:

$3^1\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{61}}^1\times {\mathrm{487}}^1$

素因数の和:581

約数の個数: 32

約数和(自身を含む): 30498048

約数和(自身を除く): 10802307

約数列:

[1, 3, 13, 17, 39, 51, 61, 183, 221, 487, 663, 793, 1037, 1461, 2379, 3111, 6331, 8279, 13481, 18993, 24837, 29707, 40443, 89121, 107627, 322881, 386191, 505019, 1158573, 1515057, 6565247, 19695741]

約数ペア:

[(1, 19695741), (3, 6565247), (13, 1515057), (17, 1158573), (39, 505019), (51, 386191), (61, 322881), (183, 107627), (221, 89121), (487, 40443), (663, 29707), (793, 24837), (1037, 18993), (1461, 13481), (2379, 8279), (3111, 6331)]