21892481

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{59}}^1\times {\mathrm{73}}^1$

素因数の和:185

約数の個数: 32

約数和(自身を含む): 26853120

約数和(自身を除く): 4960639

約数列:

[1, 13, 17, 23, 59, 73, 221, 299, 391, 767, 949, 1003, 1241, 1357, 1679, 4307, 5083, 13039, 16133, 17641, 21827, 23069, 28543, 55991, 73219, 99061, 299897, 371059, 951847, 1287793, 1684037, 21892481]

約数ペア:

[(1, 21892481), (13, 1684037), (17, 1287793), (23, 951847), (59, 371059), (73, 299897), (221, 99061), (299, 73219), (391, 55991), (767, 28543), (949, 23069), (1003, 21827), (1241, 17641), (1357, 16133), (1679, 13039), (4307, 5083)]