21222965

素因数分解:

$5^1\times {\mathrm{71}}^1\times {\mathrm{191}}^1\times {\mathrm{313}}^1$

素因数の和:580

約数の個数: 16

約数和(自身を含む): 26044416

約数和(自身を除く): 4821451

約数列:

[1, 5, 71, 191, 313, 355, 955, 1565, 13561, 22223, 59783, 67805, 111115, 298915, 4244593, 21222965]

約数ペア:

[(1, 21222965), (5, 4244593), (71, 298915), (191, 111115), (313, 67805), (355, 59783), (955, 22223), (1565, 13561)]