21248942

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{74297}}^1$

素因数の和:74323

約数の個数: 16

約数和(自身を含む): 37446192

約数和(自身を除く): 16197250

約数列:

[1, 2, 11, 13, 22, 26, 143, 286, 74297, 148594, 817267, 965861, 1634534, 1931722, 10624471, 21248942]

約数ペア:

[(1, 21248942), (2, 10624471), (11, 1931722), (13, 1634534), (22, 965861), (26, 817267), (143, 148594), (286, 74297)]