21922979

素因数分解:

${\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{227}}^1$

素因数の和:299

約数の個数: 32

約数和(自身を含む): 27578880

約数和(自身を除く): 5655901

約数列:

[1, 13, 17, 19, 23, 221, 227, 247, 299, 323, 391, 437, 2951, 3859, 4199, 4313, 5083, 5221, 5681, 7429, 50167, 56069, 67873, 73321, 88757, 96577, 99199, 953173, 1153841, 1289587, 1686383, 21922979]

約数ペア:

[(1, 21922979), (13, 1686383), (17, 1289587), (19, 1153841), (23, 953173), (221, 99199), (227, 96577), (247, 88757), (299, 73321), (323, 67873), (391, 56069), (437, 50167), (2951, 7429), (3859, 5681), (4199, 5221), (4313, 5083)]