21310081

素因数分解:

${\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{157}}^1\times {\mathrm{197}}^1$

素因数の和:420

約数の個数: 16

約数和(自身を含む): 23650704

約数和(自身を除く): 2340623

約数列:

[1, 13, 53, 157, 197, 689, 2041, 2561, 8321, 10441, 30929, 108173, 135733, 402077, 1639237, 21310081]

約数ペア:

[(1, 21310081), (13, 1639237), (53, 402077), (157, 135733), (197, 108173), (689, 30929), (2041, 10441), (2561, 8321)]