20336715

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{23}}^1\times {\mathrm{401}}^1$

素因数の和:449

約数の個数: 72

約数和(自身を含む): 42895008

約数和(自身を除く): 22558293

約数列:

[1, 3, 5, 7, 9, 15, 21, 23, 35, 45, 49, 63, 69, 105, 115, 147, 161, 207, 245, 315, 345, 401, 441, 483, 735, 805, 1035, 1127, 1203, 1449, 2005, 2205, 2415, 2807, 3381, 3609, 5635, 6015, 7245, 8421, 9223, 10143, 14035, 16905, 18045, 19649, 25263, 27669, 42105, 46115, 50715, 58947, 64561, 83007, 98245, 126315, 138345, 176841, 193683, 294735, 322805, 415035, 451927, 581049, 884205, 968415, 1355781, 2259635, 2905245, 4067343, 6778905, 20336715]

約数ペア:

[(1, 20336715), (3, 6778905), (5, 4067343), (7, 2905245), (9, 2259635), (15, 1355781), (21, 968415), (23, 884205), (35, 581049), (45, 451927), (49, 415035), (63, 322805), (69, 294735), (105, 193683), (115, 176841), (147, 138345), (161, 126315), (207, 98245), (245, 83007), (315, 64561), (345, 58947), (401, 50715), (441, 46115), (483, 42105), (735, 27669), (805, 25263), (1035, 19649), (1127, 18045), (1203, 16905), (1449, 14035), (2005, 10143), (2205, 9223), (2415, 8421), (2807, 7245), (3381, 6015), (3609, 5635)]