21960141

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{137}}^1\times {\mathrm{449}}^1$

素因数の和:613

約数の個数: 32

約数和(自身を含む): 35769600

約数和(自身を除く): 13809459

約数列:

[1, 3, 7, 17, 21, 51, 119, 137, 357, 411, 449, 959, 1347, 2329, 2877, 3143, 6987, 7633, 9429, 16303, 22899, 48909, 53431, 61513, 160293, 184539, 430591, 1045721, 1291773, 3137163, 7320047, 21960141]

約数ペア:

[(1, 21960141), (3, 7320047), (7, 3137163), (17, 1291773), (21, 1045721), (51, 430591), (119, 184539), (137, 160293), (357, 61513), (411, 53431), (449, 48909), (959, 22899), (1347, 16303), (2329, 9429), (2877, 7633), (3143, 6987)]