21356868385

素因数分解:

$5^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{1039}}^1\times {\mathrm{3803}}^1$

素因数の和:4917

約数の個数: 32

約数和(自身を含む): 27344977920

約数和(自身を除く): 5988109535

約数列:

[1, 5, 23, 47, 115, 235, 1039, 1081, 3803, 5195, 5405, 19015, 23897, 48833, 87469, 119485, 178741, 244165, 437345, 893705, 1123159, 3951317, 4111043, 5615795, 19756585, 20555215, 90880291, 185711899, 454401455, 928559495, 4271373677, 21356868385]

約数ペア:

[(1, 21356868385), (5, 4271373677), (23, 928559495), (47, 454401455), (115, 185711899), (235, 90880291), (1039, 20555215), (1081, 19756585), (3803, 5615795), (5195, 4111043), (5405, 3951317), (19015, 1123159), (23897, 893705), (48833, 437345), (87469, 244165), (119485, 178741)]