21581835

素因数分解:

$3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{139}}^1\times {\mathrm{941}}^1$

素因数の和:1099

約数の個数: 32

約数和(自身を含む): 37981440

約数和(自身を除く): 16399605

約数列:

[1, 3, 5, 11, 15, 33, 55, 139, 165, 417, 695, 941, 1529, 2085, 2823, 4587, 4705, 7645, 10351, 14115, 22935, 31053, 51755, 130799, 155265, 392397, 653995, 1438789, 1961985, 4316367, 7193945, 21581835]

約数ペア:

[(1, 21581835), (3, 7193945), (5, 4316367), (11, 1961985), (15, 1438789), (33, 653995), (55, 392397), (139, 155265), (165, 130799), (417, 51755), (695, 31053), (941, 22935), (1529, 14115), (2085, 10351), (2823, 7645), (4587, 4705)]