20418398

素因数分解:

$2^1\times 7^2\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{47}}^1$

素因数の和:118

約数の個数: 96

約数和(自身を含む): 44126208

約数和(自身を除く): 23707810

約数列:

[1, 2, 7, 11, 13, 14, 22, 26, 31, 47, 49, 62, 77, 91, 94, 98, 143, 154, 182, 217, 286, 329, 341, 403, 434, 517, 539, 611, 637, 658, 682, 806, 1001, 1034, 1078, 1222, 1274, 1457, 1519, 2002, 2303, 2387, 2821, 2914, 3038, 3619, 4277, 4433, 4606, 4774, 5642, 6721, 7007, 7238, 8554, 8866, 10199, 13442, 14014, 16027, 16709, 18941, 19747, 20398, 25333, 29939, 31031, 32054, 33418, 37882, 39494, 47047, 50666, 59878, 62062, 71393, 94094, 112189, 132587, 142786, 208351, 217217, 224378, 265174, 329329, 416702, 434434, 658658, 785323, 928109, 1458457, 1570646, 1856218, 2916914, 10209199, 20418398]

約数ペア:

[(1, 20418398), (2, 10209199), (7, 2916914), (11, 1856218), (13, 1570646), (14, 1458457), (22, 928109), (26, 785323), (31, 658658), (47, 434434), (49, 416702), (62, 329329), (77, 265174), (91, 224378), (94, 217217), (98, 208351), (143, 142786), (154, 132587), (182, 112189), (217, 94094), (286, 71393), (329, 62062), (341, 59878), (403, 50666), (434, 47047), (517, 39494), (539, 37882), (611, 33418), (637, 32054), (658, 31031), (682, 29939), (806, 25333), (1001, 20398), (1034, 19747), (1078, 18941), (1222, 16709), (1274, 16027), (1457, 14014), (1519, 13442), (2002, 10199), (2303, 8866), (2387, 8554), (2821, 7238), (2914, 7007), (3038, 6721), (3619, 5642), (4277, 4774), (4433, 4606)]