28023541

素因数分解:

$7^2\times {\mathrm{13}}^1\times {\mathrm{29}}^1\times {\mathrm{37}}^1\times {\mathrm{41}}^1$

素因数の和:134

約数の個数: 48

約数和(自身を含む): 38208240

約数和(自身を除く): 10184699

約数列:

[1, 7, 13, 29, 37, 41, 49, 91, 203, 259, 287, 377, 481, 533, 637, 1073, 1189, 1421, 1517, 1813, 2009, 2639, 3367, 3731, 7511, 8323, 10619, 13949, 15457, 18473, 19721, 23569, 26117, 43993, 52577, 58261, 74333, 97643, 108199, 138047, 307951, 571909, 683501, 757393, 966329, 2155657, 4003363, 28023541]

約数ペア:

[(1, 28023541), (7, 4003363), (13, 2155657), (29, 966329), (37, 757393), (41, 683501), (49, 571909), (91, 307951), (203, 138047), (259, 108199), (287, 97643), (377, 74333), (481, 58261), (533, 52577), (637, 43993), (1073, 26117), (1189, 23569), (1421, 19721), (1517, 18473), (1813, 15457), (2009, 13949), (2639, 10619), (3367, 8323), (3731, 7511)]