19982565

素因数分解:

$3^3\times 5^1\times {\mathrm{17}}^1\times {\mathrm{8707}}^1$

素因数の和:8738

約数の個数: 32

約数和(自身を含む): 37618560

約数和(自身を除く): 17635995

約数列:

[1, 3, 5, 9, 15, 17, 27, 45, 51, 85, 135, 153, 255, 459, 765, 2295, 8707, 26121, 43535, 78363, 130605, 148019, 235089, 391815, 444057, 740095, 1175445, 1332171, 2220285, 3996513, 6660855, 19982565]

約数ペア:

[(1, 19982565), (3, 6660855), (5, 3996513), (9, 2220285), (15, 1332171), (17, 1175445), (27, 740095), (45, 444057), (51, 391815), (85, 235089), (135, 148019), (153, 130605), (255, 78363), (459, 43535), (765, 26121), (2295, 8707)]