253444401

素因数分解:

$3^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{83}}^1\times {\mathrm{2551}}^1$

素因数の和:2666

約数の個数: 48

約数和(自身を含む): 445885440

約数和(自身を除く): 192441039

約数列:

[1, 3, 7, 9, 19, 21, 57, 63, 83, 133, 171, 249, 399, 581, 747, 1197, 1577, 1743, 2551, 4731, 5229, 7653, 11039, 14193, 17857, 22959, 33117, 48469, 53571, 99351, 145407, 160713, 211733, 339283, 436221, 635199, 1017849, 1482131, 1905597, 3053547, 4022927, 4446393, 12068781, 13339179, 28160489, 36206343, 84481467, 253444401]

約数ペア:

[(1, 253444401), (3, 84481467), (7, 36206343), (9, 28160489), (19, 13339179), (21, 12068781), (57, 4446393), (63, 4022927), (83, 3053547), (133, 1905597), (171, 1482131), (249, 1017849), (399, 635199), (581, 436221), (747, 339283), (1197, 211733), (1577, 160713), (1743, 145407), (2551, 99351), (4731, 53571), (5229, 48469), (7653, 33117), (11039, 22959), (14193, 17857)]