18753605

素因数分解:

$5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{41}}^1\times {\mathrm{227}}^1$

素因数の和:317

約数の個数: 32

約数和(自身を含む): 25740288

約数和(自身を除く): 6986683

約数列:

[1, 5, 13, 31, 41, 65, 155, 205, 227, 403, 533, 1135, 1271, 2015, 2665, 2951, 6355, 7037, 9307, 14755, 16523, 35185, 46535, 82615, 91481, 120991, 288517, 457405, 604955, 1442585, 3750721, 18753605]

約数ペア:

[(1, 18753605), (5, 3750721), (13, 1442585), (31, 604955), (41, 457405), (65, 288517), (155, 120991), (205, 91481), (227, 82615), (403, 46535), (533, 35185), (1135, 16523), (1271, 14755), (2015, 9307), (2665, 7037), (2951, 6355)]