19995927

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{79}}^1\times {\mathrm{709}}^1$

素因数の和:815

約数の個数: 32

約数和(自身を含む): 32716800

約数和(自身を除く): 12720873

約数列:

[1, 3, 7, 17, 21, 51, 79, 119, 237, 357, 553, 709, 1343, 1659, 2127, 4029, 4963, 9401, 12053, 14889, 28203, 36159, 56011, 84371, 168033, 253113, 392077, 952187, 1176231, 2856561, 6665309, 19995927]

約数ペア:

[(1, 19995927), (3, 6665309), (7, 2856561), (17, 1176231), (21, 952187), (51, 392077), (79, 253113), (119, 168033), (237, 84371), (357, 56011), (553, 36159), (709, 28203), (1343, 14889), (1659, 12053), (2127, 9401), (4029, 4963)]