21705422

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{389}}^1\times {\mathrm{1213}}^1$

素因数の和:1627

約数の個数: 16

約数和(自身を含む): 34089120

約数和(自身を除く): 12383698

約数列:

[1, 2, 23, 46, 389, 778, 1213, 2426, 8947, 17894, 27899, 55798, 471857, 943714, 10852711, 21705422]

約数ペア:

[(1, 21705422), (2, 10852711), (23, 943714), (46, 471857), (389, 55798), (778, 27899), (1213, 17894), (2426, 8947)]