21132474

素因数分解:

$2^1\times 3^1\times {\mathrm{11}}^1\times {\mathrm{29}}^1\times {\mathrm{61}}^1\times {\mathrm{181}}^1$

素因数の和:287

約数の個数: 64

約数和(自身を含む): 48746880

約数和(自身を除く): 27614406

約数列:

[1, 2, 3, 6, 11, 22, 29, 33, 58, 61, 66, 87, 122, 174, 181, 183, 319, 362, 366, 543, 638, 671, 957, 1086, 1342, 1769, 1914, 1991, 2013, 3538, 3982, 4026, 5249, 5307, 5973, 10498, 10614, 11041, 11946, 15747, 19459, 22082, 31494, 33123, 38918, 57739, 58377, 66246, 115478, 116754, 121451, 173217, 242902, 320189, 346434, 364353, 640378, 728706, 960567, 1921134, 3522079, 7044158, 10566237, 21132474]

約数ペア:

[(1, 21132474), (2, 10566237), (3, 7044158), (6, 3522079), (11, 1921134), (22, 960567), (29, 728706), (33, 640378), (58, 364353), (61, 346434), (66, 320189), (87, 242902), (122, 173217), (174, 121451), (181, 116754), (183, 115478), (319, 66246), (362, 58377), (366, 57739), (543, 38918), (638, 33123), (671, 31494), (957, 22082), (1086, 19459), (1342, 15747), (1769, 11946), (1914, 11041), (1991, 10614), (2013, 10498), (3538, 5973), (3982, 5307), (4026, 5249)]