18970756

素因数分解:

$2^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{383}}^1$

素因数の和:484

約数の個数: 48

約数和(自身を含む): 39997440

約数和(自身を除く): 21026684

約数列:

[1, 2, 4, 7, 14, 28, 29, 58, 61, 116, 122, 203, 244, 383, 406, 427, 766, 812, 854, 1532, 1708, 1769, 2681, 3538, 5362, 7076, 10724, 11107, 12383, 22214, 23363, 24766, 44428, 46726, 49532, 77749, 93452, 155498, 163541, 310996, 327082, 654164, 677527, 1355054, 2710108, 4742689, 9485378, 18970756]

約数ペア:

[(1, 18970756), (2, 9485378), (4, 4742689), (7, 2710108), (14, 1355054), (28, 677527), (29, 654164), (58, 327082), (61, 310996), (116, 163541), (122, 155498), (203, 93452), (244, 77749), (383, 49532), (406, 46726), (427, 44428), (766, 24766), (812, 23363), (854, 22214), (1532, 12383), (1708, 11107), (1769, 10724), (2681, 7076), (3538, 5362)]