20354955

素因数分解:

$3^1\times 5^1\times {\mathrm{29}}^1\times {\mathrm{73}}^1\times {\mathrm{641}}^1$

素因数の和:751

約数の個数: 32

約数和(自身を含む): 34205760

約数和(自身を除く): 13850805

約数列:

[1, 3, 5, 15, 29, 73, 87, 145, 219, 365, 435, 641, 1095, 1923, 2117, 3205, 6351, 9615, 10585, 18589, 31755, 46793, 55767, 92945, 140379, 233965, 278835, 701895, 1356997, 4070991, 6784985, 20354955]

約数ペア:

[(1, 20354955), (3, 6784985), (5, 4070991), (15, 1356997), (29, 701895), (73, 278835), (87, 233965), (145, 140379), (219, 92945), (365, 55767), (435, 46793), (641, 31755), (1095, 18589), (1923, 10585), (2117, 9615), (3205, 6351)]