20751224

素因数分解:

$2^3\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{3271}}^1$

素因数の和:3351

約数の個数: 32

約数和(自身を含む): 42601440

約数和(自身を除く): 21850216

約数列:

[1, 2, 4, 8, 13, 26, 52, 61, 104, 122, 244, 488, 793, 1586, 3172, 3271, 6344, 6542, 13084, 26168, 42523, 85046, 170092, 199531, 340184, 399062, 798124, 1596248, 2593903, 5187806, 10375612, 20751224]

約数ペア:

[(1, 20751224), (2, 10375612), (4, 5187806), (8, 2593903), (13, 1596248), (26, 798124), (52, 399062), (61, 340184), (104, 199531), (122, 170092), (244, 85046), (488, 42523), (793, 26168), (1586, 13084), (3172, 6542), (3271, 6344)]