231318

素因数分解:

$2^1\times 3^2\times {\mathrm{71}}^1\times {\mathrm{181}}^1$

素因数の和:260

約数の個数: 24

約数和(自身を含む): 511056

約数和(自身を除く): 279738

約数列:

[1, 2, 3, 6, 9, 18, 71, 142, 181, 213, 362, 426, 543, 639, 1086, 1278, 1629, 3258, 12851, 25702, 38553, 77106, 115659, 231318]

約数ペア:

[(1, 231318), (2, 115659), (3, 77106), (6, 38553), (9, 25702), (18, 12851), (71, 3258), (142, 1629), (181, 1278), (213, 1086), (362, 639), (426, 543)]