18973305

素因数分解:

$3^3\times 5^1\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{569}}^1$

素因数の和:615

約数の個数: 64

約数和(自身を含む): 38304000

約数和(自身を除く): 19330695

約数列:

[1, 3, 5, 9, 13, 15, 19, 27, 39, 45, 57, 65, 95, 117, 135, 171, 195, 247, 285, 351, 513, 569, 585, 741, 855, 1235, 1707, 1755, 2223, 2565, 2845, 3705, 5121, 6669, 7397, 8535, 10811, 11115, 15363, 22191, 25605, 32433, 33345, 36985, 54055, 66573, 76815, 97299, 110955, 140543, 162165, 199719, 291897, 332865, 421629, 486495, 702715, 998595, 1264887, 1459485, 2108145, 3794661, 6324435, 18973305]

約数ペア:

[(1, 18973305), (3, 6324435), (5, 3794661), (9, 2108145), (13, 1459485), (15, 1264887), (19, 998595), (27, 702715), (39, 486495), (45, 421629), (57, 332865), (65, 291897), (95, 199719), (117, 162165), (135, 140543), (171, 110955), (195, 97299), (247, 76815), (285, 66573), (351, 54055), (513, 36985), (569, 33345), (585, 32433), (741, 25605), (855, 22191), (1235, 15363), (1707, 11115), (1755, 10811), (2223, 8535), (2565, 7397), (2845, 6669), (3705, 5121)]