18914728

素因数分解:

$2^3\times 7^1\times {\mathrm{19}}^1\times {\mathrm{29}}^1\times {\mathrm{613}}^1$

素因数の和:674

約数の個数: 64

約数和(自身を含む): 44208000

約数和(自身を除く): 25293272

約数列:

[1, 2, 4, 7, 8, 14, 19, 28, 29, 38, 56, 58, 76, 116, 133, 152, 203, 232, 266, 406, 532, 551, 613, 812, 1064, 1102, 1226, 1624, 2204, 2452, 3857, 4291, 4408, 4904, 7714, 8582, 11647, 15428, 17164, 17777, 23294, 30856, 34328, 35554, 46588, 71108, 81529, 93176, 124439, 142216, 163058, 248878, 326116, 337763, 497756, 652232, 675526, 995512, 1351052, 2364341, 2702104, 4728682, 9457364, 18914728]

約数ペア:

[(1, 18914728), (2, 9457364), (4, 4728682), (7, 2702104), (8, 2364341), (14, 1351052), (19, 995512), (28, 675526), (29, 652232), (38, 497756), (56, 337763), (58, 326116), (76, 248878), (116, 163058), (133, 142216), (152, 124439), (203, 93176), (232, 81529), (266, 71108), (406, 46588), (532, 35554), (551, 34328), (613, 30856), (812, 23294), (1064, 17777), (1102, 17164), (1226, 15428), (1624, 11647), (2204, 8582), (2452, 7714), (3857, 4904), (4291, 4408)]