21121548

素因数分解:

$2^2\times 3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{2113}}^1$

素因数の和:2151

約数の個数: 72

約数和(自身を含む): 60730992

約数和(自身を除く): 39609444

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 17, 21, 28, 34, 42, 49, 51, 68, 84, 98, 102, 119, 147, 196, 204, 238, 294, 357, 476, 588, 714, 833, 1428, 1666, 2113, 2499, 3332, 4226, 4998, 6339, 8452, 9996, 12678, 14791, 25356, 29582, 35921, 44373, 59164, 71842, 88746, 103537, 107763, 143684, 177492, 207074, 215526, 251447, 310611, 414148, 431052, 502894, 621222, 754341, 1005788, 1242444, 1508682, 1760129, 3017364, 3520258, 5280387, 7040516, 10560774, 21121548]

約数ペア:

[(1, 21121548), (2, 10560774), (3, 7040516), (4, 5280387), (6, 3520258), (7, 3017364), (12, 1760129), (14, 1508682), (17, 1242444), (21, 1005788), (28, 754341), (34, 621222), (42, 502894), (49, 431052), (51, 414148), (68, 310611), (84, 251447), (98, 215526), (102, 207074), (119, 177492), (147, 143684), (196, 107763), (204, 103537), (238, 88746), (294, 71842), (357, 59164), (476, 44373), (588, 35921), (714, 29582), (833, 25356), (1428, 14791), (1666, 12678), (2113, 9996), (2499, 8452), (3332, 6339), (4226, 4998)]