31308687

素因数分解:

$3^4\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{101}}^1$

素因数の和:245

約数の個数: 40

約数和(自身を含む): 48874320

約数和(自身を除く): 17565633

約数列:

[1, 3, 9, 27, 43, 81, 89, 101, 129, 267, 303, 387, 801, 909, 1161, 2403, 2727, 3483, 3827, 4343, 7209, 8181, 8989, 11481, 13029, 26967, 34443, 39087, 80901, 103329, 117261, 242703, 309987, 351783, 386527, 728109, 1159581, 3478743, 10436229, 31308687]

約数ペア:

[(1, 31308687), (3, 10436229), (9, 3478743), (27, 1159581), (43, 728109), (81, 386527), (89, 351783), (101, 309987), (129, 242703), (267, 117261), (303, 103329), (387, 80901), (801, 39087), (909, 34443), (1161, 26967), (2403, 13029), (2727, 11481), (3483, 8989), (3827, 8181), (4343, 7209)]