11931905

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{71}}^1$

素因数の和:185

約数の個数: 32

約数和(自身を含む): 16070400

約数和(自身を除く): 4138495

約数列:

[1, 5, 19, 29, 61, 71, 95, 145, 305, 355, 551, 1159, 1349, 1769, 2059, 2755, 4331, 5795, 6745, 8845, 10295, 21655, 33611, 39121, 82289, 125599, 168055, 195605, 411445, 627995, 2386381, 11931905]

約数ペア:

[(1, 11931905), (5, 2386381), (19, 627995), (29, 411445), (61, 195605), (71, 168055), (95, 125599), (145, 82289), (305, 39121), (355, 33611), (551, 21655), (1159, 10295), (1349, 8845), (1769, 6745), (2059, 5795), (2755, 4331)]