18220304

素因数分解:

$2^4\times {\mathrm{43}}^1\times {\mathrm{71}}^1\times {\mathrm{373}}^1$

素因数の和:495

約数の個数: 40

約数和(自身を含む): 36729792

約数和(自身を除く): 18509488

約数列:

[1, 2, 4, 8, 16, 43, 71, 86, 142, 172, 284, 344, 373, 568, 688, 746, 1136, 1492, 2984, 3053, 5968, 6106, 12212, 16039, 24424, 26483, 32078, 48848, 52966, 64156, 105932, 128312, 211864, 256624, 423728, 1138769, 2277538, 4555076, 9110152, 18220304]

約数ペア:

[(1, 18220304), (2, 9110152), (4, 4555076), (8, 2277538), (16, 1138769), (43, 423728), (71, 256624), (86, 211864), (142, 128312), (172, 105932), (284, 64156), (344, 52966), (373, 48848), (568, 32078), (688, 26483), (746, 24424), (1136, 16039), (1492, 12212), (2984, 6106), (3053, 5968)]