21273254

素因数分解:

$2^1\times {\mathrm{31}}^1\times {\mathrm{251}}^1\times {\mathrm{1367}}^1$

素因数の和:1651

約数の個数: 16

約数和(自身を含む): 33094656

約数和(自身を除く): 11821402

約数列:

[1, 2, 31, 62, 251, 502, 1367, 2734, 7781, 15562, 42377, 84754, 343117, 686234, 10636627, 21273254]

約数ペア:

[(1, 21273254), (2, 10636627), (31, 686234), (62, 343117), (251, 84754), (502, 42377), (1367, 15562), (2734, 7781)]