2931813

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{239}}^1$

素因数の和:321

約数の個数: 24

約数和(自身を含む): 4492800

約数和(自身を除く): 1560987

約数列:

[1, 3, 9, 29, 47, 87, 141, 239, 261, 423, 717, 1363, 2151, 4089, 6931, 11233, 12267, 20793, 33699, 62379, 101097, 325757, 977271, 2931813]

約数ペア:

[(1, 2931813), (3, 977271), (9, 325757), (29, 101097), (47, 62379), (87, 33699), (141, 20793), (239, 12267), (261, 11233), (423, 6931), (717, 4089), (1363, 2151)]