21842685

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{59}}^1\times {\mathrm{433}}^1$

素因数の和:522

約数の個数: 48

約数和(自身を含む): 40622400

約数和(自身を除く): 18779715

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 59, 95, 171, 177, 285, 295, 433, 531, 855, 885, 1121, 1299, 2165, 2655, 3363, 3897, 5605, 6495, 8227, 10089, 16815, 19485, 24681, 25547, 41135, 50445, 74043, 76641, 123405, 127735, 229923, 370215, 383205, 485393, 1149615, 1456179, 2426965, 4368537, 7280895, 21842685]

約数ペア:

[(1, 21842685), (3, 7280895), (5, 4368537), (9, 2426965), (15, 1456179), (19, 1149615), (45, 485393), (57, 383205), (59, 370215), (95, 229923), (171, 127735), (177, 123405), (285, 76641), (295, 74043), (433, 50445), (531, 41135), (855, 25547), (885, 24681), (1121, 19485), (1299, 16815), (2165, 10089), (2655, 8227), (3363, 6495), (3897, 5605)]