21496585

素因数分解:

$5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{83}}^1\times {\mathrm{277}}^1$

素因数の和:393

約数の個数: 32

約数和(自身を含む): 30264192

約数和(自身を除く): 8767607

約数列:

[1, 5, 11, 17, 55, 83, 85, 187, 277, 415, 913, 935, 1385, 1411, 3047, 4565, 4709, 7055, 15235, 15521, 22991, 23545, 51799, 77605, 114955, 252901, 258995, 390847, 1264505, 1954235, 4299317, 21496585]

約数ペア:

[(1, 21496585), (5, 4299317), (11, 1954235), (17, 1264505), (55, 390847), (83, 258995), (85, 252901), (187, 114955), (277, 77605), (415, 51799), (913, 23545), (935, 22991), (1385, 15521), (1411, 15235), (3047, 7055), (4565, 4709)]