28310247

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{67}}^1\times {\mathrm{353}}^1$

素因数の和:452

約数の個数: 48

約数和(自身を含む): 50069760

約数和(自身を除く): 21759513

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 67, 133, 171, 201, 353, 399, 469, 603, 1059, 1197, 1273, 1407, 2471, 3177, 3819, 4221, 6707, 7413, 8911, 11457, 20121, 22239, 23651, 26733, 46949, 60363, 70953, 80199, 140847, 165557, 212859, 422541, 449369, 496671, 1348107, 1490013, 3145583, 4044321, 9436749, 28310247]

約数ペア:

[(1, 28310247), (3, 9436749), (7, 4044321), (9, 3145583), (19, 1490013), (21, 1348107), (57, 496671), (63, 449369), (67, 422541), (133, 212859), (171, 165557), (201, 140847), (353, 80199), (399, 70953), (469, 60363), (603, 46949), (1059, 26733), (1197, 23651), (1273, 22239), (1407, 20121), (2471, 11457), (3177, 8911), (3819, 7413), (4221, 6707)]