21859424

素因数分解:

$2^5\times {\mathrm{19}}^1\times {\mathrm{157}}^1\times {\mathrm{229}}^1$

素因数の和:415

約数の個数: 48

約数和(自身を含む): 45788400

約数和(自身を除く): 23928976

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 76, 152, 157, 229, 304, 314, 458, 608, 628, 916, 1256, 1832, 2512, 2983, 3664, 4351, 5024, 5966, 7328, 8702, 11932, 17404, 23864, 34808, 35953, 47728, 69616, 71906, 95456, 139232, 143812, 287624, 575248, 683107, 1150496, 1366214, 2732428, 5464856, 10929712, 21859424]

約数ペア:

[(1, 21859424), (2, 10929712), (4, 5464856), (8, 2732428), (16, 1366214), (19, 1150496), (32, 683107), (38, 575248), (76, 287624), (152, 143812), (157, 139232), (229, 95456), (304, 71906), (314, 69616), (458, 47728), (608, 35953), (628, 34808), (916, 23864), (1256, 17404), (1832, 11932), (2512, 8702), (2983, 7328), (3664, 5966), (4351, 5024)]