21215697910

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{29}}^1\times {\mathrm{391217}}^1$

素因数の和:391281

約数の個数: 64

約数和(自身を含む): 45631667520

約数和(自身を除く): 24415969610

約数列:

[1, 2, 5, 10, 11, 17, 22, 29, 34, 55, 58, 85, 110, 145, 170, 187, 290, 319, 374, 493, 638, 935, 986, 1595, 1870, 2465, 3190, 4930, 5423, 10846, 27115, 54230, 391217, 782434, 1956085, 3912170, 4303387, 6650689, 8606774, 11345293, 13301378, 21516935, 22690586, 33253445, 43033870, 56726465, 66506890, 73157579, 113452930, 124798223, 146315158, 192869981, 249596446, 365787895, 385739962, 623991115, 731575790, 964349905, 1247982230, 1928699810, 2121569791, 4243139582, 10607848955, 21215697910]

約数ペア:

[(1, 21215697910), (2, 10607848955), (5, 4243139582), (10, 2121569791), (11, 1928699810), (17, 1247982230), (22, 964349905), (29, 731575790), (34, 623991115), (55, 385739962), (58, 365787895), (85, 249596446), (110, 192869981), (145, 146315158), (170, 124798223), (187, 113452930), (290, 73157579), (319, 66506890), (374, 56726465), (493, 43033870), (638, 33253445), (935, 22690586), (986, 21516935), (1595, 13301378), (1870, 11345293), (2465, 8606774), (3190, 6650689), (4930, 4303387), (5423, 3912170), (10846, 1956085), (27115, 782434), (54230, 391217)]