640082997

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{587}}^1\times {\mathrm{7127}}^1$

素因数の和:7737

約数の個数: 24

約数和(自身を含む): 980755776

約数和(自身を除く): 340672779

約数列:

[1, 3, 9, 17, 51, 153, 587, 1761, 5283, 7127, 9979, 21381, 29937, 64143, 89811, 121159, 363477, 1090431, 4183549, 12550647, 37651941, 71120333, 213360999, 640082997]

約数ペア:

[(1, 640082997), (3, 213360999), (9, 71120333), (17, 37651941), (51, 12550647), (153, 4183549), (587, 1090431), (1761, 363477), (5283, 121159), (7127, 89811), (9979, 64143), (21381, 29937)]