20894418

素因数分解:

$2^1\times 3^2\times {\mathrm{37}}^1\times {\mathrm{137}}^1\times {\mathrm{229}}^1$

素因数の和:411

約数の個数: 48

約数和(自身を含む): 47038680

約数和(自身を除く): 26144262

約数列:

[1, 2, 3, 6, 9, 18, 37, 74, 111, 137, 222, 229, 274, 333, 411, 458, 666, 687, 822, 1233, 1374, 2061, 2466, 4122, 5069, 8473, 10138, 15207, 16946, 25419, 30414, 31373, 45621, 50838, 62746, 76257, 91242, 94119, 152514, 188238, 282357, 564714, 1160801, 2321602, 3482403, 6964806, 10447209, 20894418]

約数ペア:

[(1, 20894418), (2, 10447209), (3, 6964806), (6, 3482403), (9, 2321602), (18, 1160801), (37, 564714), (74, 282357), (111, 188238), (137, 152514), (222, 94119), (229, 91242), (274, 76257), (333, 62746), (411, 50838), (458, 45621), (666, 31373), (687, 30414), (822, 25419), (1233, 16946), (1374, 15207), (2061, 10138), (2466, 8473), (4122, 5069)]