20768031

素因数分解:

$3^2\times {\mathrm{29}}^1\times {\mathrm{47}}^1\times {\mathrm{1693}}^1$

素因数の和:1775

約数の個数: 24

約数和(自身を含む): 31711680

約数和(自身を除く): 10943649

約数列:

[1, 3, 9, 29, 47, 87, 141, 261, 423, 1363, 1693, 4089, 5079, 12267, 15237, 49097, 79571, 147291, 238713, 441873, 716139, 2307559, 6922677, 20768031]

約数ペア:

[(1, 20768031), (3, 6922677), (9, 2307559), (29, 716139), (47, 441873), (87, 238713), (141, 147291), (261, 79571), (423, 49097), (1363, 15237), (1693, 12267), (4089, 5079)]