21156422

素因数分解:

$2^1\times 7^1\times {\mathrm{73}}^1\times {\mathrm{127}}^1\times {\mathrm{163}}^1$

素因数の和:372

約数の個数: 32

約数和(自身を含む): 37281792

約数和(自身を除く): 16125370

約数列:

[1, 2, 7, 14, 73, 127, 146, 163, 254, 326, 511, 889, 1022, 1141, 1778, 2282, 9271, 11899, 18542, 20701, 23798, 41402, 64897, 83293, 129794, 144907, 166586, 289814, 1511173, 3022346, 10578211, 21156422]

約数ペア:

[(1, 21156422), (2, 10578211), (7, 3022346), (14, 1511173), (73, 289814), (127, 166586), (146, 144907), (163, 129794), (254, 83293), (326, 64897), (511, 41402), (889, 23798), (1022, 20701), (1141, 18542), (1778, 11899), (2282, 9271)]