18408465

素因数分解:

$3^5\times 5^1\times {\mathrm{109}}^1\times {\mathrm{139}}^1$

素因数の和:268

約数の個数: 48

約数和(自身を含む): 33633600

約数和(自身を除く): 15225135

約数列:

[1, 3, 5, 9, 15, 27, 45, 81, 109, 135, 139, 243, 327, 405, 417, 545, 695, 981, 1215, 1251, 1635, 2085, 2943, 3753, 4905, 6255, 8829, 11259, 14715, 15151, 18765, 26487, 33777, 44145, 45453, 56295, 75755, 132435, 136359, 168885, 227265, 409077, 681795, 1227231, 2045385, 3681693, 6136155, 18408465]

約数ペア:

[(1, 18408465), (3, 6136155), (5, 3681693), (9, 2045385), (15, 1227231), (27, 681795), (45, 409077), (81, 227265), (109, 168885), (135, 136359), (139, 132435), (243, 75755), (327, 56295), (405, 45453), (417, 44145), (545, 33777), (695, 26487), (981, 18765), (1215, 15151), (1251, 14715), (1635, 11259), (2085, 8829), (2943, 6255), (3753, 4905)]