21765227

素因数分解:

${\mathrm{11}}^1\times {\mathrm{61}}^1\times {\mathrm{163}}^1\times {\mathrm{199}}^1$

素因数の和:434

約数の個数: 16

約数和(自身を含む): 24403200

約数和(自身を除く): 2637973

約数列:

[1, 11, 61, 163, 199, 671, 1793, 2189, 9943, 12139, 32437, 109373, 133529, 356807, 1978657, 21765227]

約数ペア:

[(1, 21765227), (11, 1978657), (61, 356807), (163, 133529), (199, 109373), (671, 32437), (1793, 12139), (2189, 9943)]