20411865

素因数分解:

$3^3\times 5^1\times {\mathrm{47}}^1\times {\mathrm{3217}}^1$

素因数の和:3278

約数の個数: 32

約数和(自身を含む): 37071360

約数和(自身を除く): 16659495

約数列:

[1, 3, 5, 9, 15, 27, 45, 47, 135, 141, 235, 423, 705, 1269, 2115, 3217, 6345, 9651, 16085, 28953, 48255, 86859, 144765, 151199, 434295, 453597, 755995, 1360791, 2267985, 4082373, 6803955, 20411865]

約数ペア:

[(1, 20411865), (3, 6803955), (5, 4082373), (9, 2267985), (15, 1360791), (27, 755995), (45, 453597), (47, 434295), (135, 151199), (141, 144765), (235, 86859), (423, 48255), (705, 28953), (1269, 16085), (2115, 9651), (3217, 6345)]