28116522

素因数分解:

$2^1\times 3^2\times 7^1\times {\mathrm{37}}^2\times {\mathrm{163}}^1$

素因数の和:252

約数の個数: 72

約数和(自身を含む): 71993376

約数和(自身を除く): 43876854

約数列:

[1, 2, 3, 6, 7, 9, 14, 18, 21, 37, 42, 63, 74, 111, 126, 163, 222, 259, 326, 333, 489, 518, 666, 777, 978, 1141, 1369, 1467, 1554, 2282, 2331, 2738, 2934, 3423, 4107, 4662, 6031, 6846, 8214, 9583, 10269, 12062, 12321, 18093, 19166, 20538, 24642, 28749, 36186, 42217, 54279, 57498, 84434, 86247, 108558, 126651, 172494, 223147, 253302, 379953, 446294, 669441, 759906, 1338882, 1562029, 2008323, 3124058, 4016646, 4686087, 9372174, 14058261, 28116522]

約数ペア:

[(1, 28116522), (2, 14058261), (3, 9372174), (6, 4686087), (7, 4016646), (9, 3124058), (14, 2008323), (18, 1562029), (21, 1338882), (37, 759906), (42, 669441), (63, 446294), (74, 379953), (111, 253302), (126, 223147), (163, 172494), (222, 126651), (259, 108558), (326, 86247), (333, 84434), (489, 57498), (518, 54279), (666, 42217), (777, 36186), (978, 28749), (1141, 24642), (1369, 20538), (1467, 19166), (1554, 18093), (2282, 12321), (2331, 12062), (2738, 10269), (2934, 9583), (3423, 8214), (4107, 6846), (4662, 6031)]