399105

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{181}}^1$

素因数の和:206

約数の個数: 36

約数和(自身を含む): 809172

約数和(自身を除く): 410067

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 181, 245, 315, 441, 543, 735, 905, 1267, 1629, 2205, 2715, 3801, 6335, 8145, 8869, 11403, 19005, 26607, 44345, 57015, 79821, 133035, 399105]

約数ペア:

[(1, 399105), (3, 133035), (5, 79821), (7, 57015), (9, 44345), (15, 26607), (21, 19005), (35, 11403), (45, 8869), (49, 8145), (63, 6335), (105, 3801), (147, 2715), (181, 2205), (245, 1629), (315, 1267), (441, 905), (543, 735)]