221350665

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{71}}^1\times {\mathrm{10939}}^1$

素因数の和:11037

約数の個数: 32

約数和(自身を含む): 378086400

約数和(自身を除く): 156735735

約数列:

[1, 3, 5, 15, 19, 57, 71, 95, 213, 285, 355, 1065, 1349, 4047, 6745, 10939, 20235, 32817, 54695, 164085, 207841, 623523, 776669, 1039205, 2330007, 3117615, 3883345, 11650035, 14756711, 44270133, 73783555, 221350665]

約数ペア:

[(1, 221350665), (3, 73783555), (5, 44270133), (15, 14756711), (19, 11650035), (57, 3883345), (71, 3117615), (95, 2330007), (213, 1039205), (285, 776669), (355, 623523), (1065, 207841), (1349, 164085), (4047, 54695), (6745, 32817), (10939, 20235)]