221517295

素因数分解:

$5^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{211}}^1\times {\mathrm{257}}^1$

素因数の和:535

約数の個数: 32

約数和(自身を含む): 288794880

約数和(自身を除く): 67277585

約数列:

[1, 5, 19, 43, 95, 211, 215, 257, 817, 1055, 1285, 4009, 4085, 4883, 9073, 11051, 20045, 24415, 45365, 54227, 55255, 172387, 209969, 271135, 861935, 1030313, 1049845, 2331761, 5151565, 11658805, 44303459, 221517295]

約数ペア:

[(1, 221517295), (5, 44303459), (19, 11658805), (43, 5151565), (95, 2331761), (211, 1049845), (215, 1030313), (257, 861935), (817, 271135), (1055, 209969), (1285, 172387), (4009, 55255), (4085, 54227), (4883, 45365), (9073, 24415), (11051, 20045)]