221361231

素因数分解:

$3^1\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{15299}}^1$

素因数の和:15375

約数の個数: 32

約数和(自身を含む): 370137600

約数和(自身を除く): 148776369

約数列:

[1, 3, 7, 13, 21, 39, 53, 91, 159, 273, 371, 689, 1113, 2067, 4823, 14469, 15299, 45897, 107093, 198887, 321279, 596661, 810847, 1392209, 2432541, 4176627, 5675929, 10541011, 17027787, 31623033, 73787077, 221361231]

約数ペア:

[(1, 221361231), (3, 73787077), (7, 31623033), (13, 17027787), (21, 10541011), (39, 5675929), (53, 4176627), (91, 2432541), (159, 1392209), (273, 810847), (371, 596661), (689, 321279), (1113, 198887), (2067, 107093), (4823, 45897), (14469, 15299)]