213510315

素因数分解:

$3^1\times 5^1\times {\mathrm{19}}^1\times {\mathrm{181}}^1\times {\mathrm{4139}}^1$

素因数の和:4347

約数の個数: 32

約数和(自身を含む): 361670400

約数和(自身を除く): 148160085

約数列:

[1, 3, 5, 15, 19, 57, 95, 181, 285, 543, 905, 2715, 3439, 4139, 10317, 12417, 17195, 20695, 51585, 62085, 78641, 235923, 393205, 749159, 1179615, 2247477, 3745795, 11237385, 14234021, 42702063, 71170105, 213510315]

約数ペア:

[(1, 213510315), (3, 71170105), (5, 42702063), (15, 14234021), (19, 11237385), (57, 3745795), (95, 2247477), (181, 1179615), (285, 749159), (543, 393205), (905, 235923), (2715, 78641), (3439, 62085), (4139, 51585), (10317, 20695), (12417, 17195)]