31311399

素因数分解:

$3^1\times 7^1\times {\mathrm{17}}^1\times {\mathrm{229}}^1\times {\mathrm{383}}^1$

素因数の和:639

約数の個数: 32

約数和(自身を含む): 50872320

約数和(自身を除く): 19560921

約数列:

[1, 3, 7, 17, 21, 51, 119, 229, 357, 383, 687, 1149, 1603, 2681, 3893, 4809, 6511, 8043, 11679, 19533, 27251, 45577, 81753, 87707, 136731, 263121, 613949, 1491019, 1841847, 4473057, 10437133, 31311399]

約数ペア:

[(1, 31311399), (3, 10437133), (7, 4473057), (17, 1841847), (21, 1491019), (51, 613949), (119, 263121), (229, 136731), (357, 87707), (383, 81753), (687, 45577), (1149, 27251), (1603, 19533), (2681, 11679), (3893, 8043), (4809, 6511)]