31213917

素因数分解:

$3^4\times 7^1\times {\mathrm{55051}}^1$

素因数の和:55070

約数の個数: 20

約数和(自身を含む): 53290336

約数和(自身を除く): 22076419

約数列:

[1, 3, 7, 9, 21, 27, 63, 81, 189, 567, 55051, 165153, 385357, 495459, 1156071, 1486377, 3468213, 4459131, 10404639, 31213917]

約数ペア:

[(1, 31213917), (3, 10404639), (7, 4459131), (9, 3468213), (21, 1486377), (27, 1156071), (63, 495459), (81, 385357), (189, 165153), (567, 55051)]