21485385

素因数分解:

$3^3\times 5^1\times {\mathrm{167}}^1\times {\mathrm{953}}^1$

素因数の和:1134

約数の個数: 32

約数和(自身を含む): 38465280

約数和(自身を除く): 16979895

約数列:

[1, 3, 5, 9, 15, 27, 45, 135, 167, 501, 835, 953, 1503, 2505, 2859, 4509, 4765, 7515, 8577, 14295, 22545, 25731, 42885, 128655, 159151, 477453, 795755, 1432359, 2387265, 4297077, 7161795, 21485385]

約数ペア:

[(1, 21485385), (3, 7161795), (5, 4297077), (9, 2387265), (15, 1432359), (27, 795755), (45, 477453), (135, 159151), (167, 128655), (501, 42885), (835, 25731), (953, 22545), (1503, 14295), (2505, 8577), (2859, 7515), (4509, 4765)]