21272838

素因数分解:

$2^1\times 3^1\times {\mathrm{23}}^1\times {\mathrm{139}}^1\times {\mathrm{1109}}^1$

素因数の和:1276

約数の個数: 32

約数和(自身を含む): 44755200

約数和(自身を除く): 23482362

約数列:

[1, 2, 3, 6, 23, 46, 69, 138, 139, 278, 417, 834, 1109, 2218, 3197, 3327, 6394, 6654, 9591, 19182, 25507, 51014, 76521, 153042, 154151, 308302, 462453, 924906, 3545473, 7090946, 10636419, 21272838]

約数ペア:

[(1, 21272838), (2, 10636419), (3, 7090946), (6, 3545473), (23, 924906), (46, 462453), (69, 308302), (138, 154151), (139, 153042), (278, 76521), (417, 51014), (834, 25507), (1109, 19182), (2218, 9591), (3197, 6654), (3327, 6394)]