21977482

素因数分解:

$2^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{71}}^1\times {\mathrm{89}}^1$

素因数の和:246

約数の個数: 32

約数和(自身を含む): 35458560

約数和(自身を除く): 13481078

約数列:

[1, 2, 37, 47, 71, 74, 89, 94, 142, 178, 1739, 2627, 3293, 3337, 3478, 4183, 5254, 6319, 6586, 6674, 8366, 12638, 123469, 154771, 233803, 246938, 296993, 309542, 467606, 593986, 10988741, 21977482]

約数ペア:

[(1, 21977482), (2, 10988741), (37, 593986), (47, 467606), (71, 309542), (74, 296993), (89, 246938), (94, 233803), (142, 154771), (178, 123469), (1739, 12638), (2627, 8366), (3293, 6674), (3337, 6586), (3478, 6319), (4183, 5254)]