20681224

素因数分解:

$2^3\times {\mathrm{37}}^1\times {\mathrm{109}}^1\times {\mathrm{641}}^1$

素因数の和:793

約数の個数: 32

約数和(自身を含む): 40253400

約数和(自身を除く): 19572176

約数列:

[1, 2, 4, 8, 37, 74, 109, 148, 218, 296, 436, 641, 872, 1282, 2564, 4033, 5128, 8066, 16132, 23717, 32264, 47434, 69869, 94868, 139738, 189736, 279476, 558952, 2585153, 5170306, 10340612, 20681224]

約数ペア:

[(1, 20681224), (2, 10340612), (4, 5170306), (8, 2585153), (37, 558952), (74, 279476), (109, 189736), (148, 139738), (218, 94868), (296, 69869), (436, 47434), (641, 32264), (872, 23717), (1282, 16132), (2564, 8066), (4033, 5128)]