21041097

素因数分解:

$3^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{79}}^1\times {\mathrm{1153}}^1$

素因数の和:1253

約数の個数: 32

約数和(自身を含む): 35450880

約数和(自身を除く): 14409783

約数列:

[1, 3, 7, 11, 21, 33, 77, 79, 231, 237, 553, 869, 1153, 1659, 2607, 3459, 6083, 8071, 12683, 18249, 24213, 38049, 88781, 91087, 266343, 273261, 637609, 1001957, 1912827, 3005871, 7013699, 21041097]

約数ペア:

[(1, 21041097), (3, 7013699), (7, 3005871), (11, 1912827), (21, 1001957), (33, 637609), (77, 273261), (79, 266343), (231, 91087), (237, 88781), (553, 38049), (869, 24213), (1153, 18249), (1659, 12683), (2607, 8071), (3459, 6083)]