21276860

素因数分解:

$2^2\times 5^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{5689}}^1$

素因数の和:5726

約数の個数: 48

約数和(自身を含む): 51619680

約数和(自身を除く): 30342820

約数列:

[1, 2, 4, 5, 10, 11, 17, 20, 22, 34, 44, 55, 68, 85, 110, 170, 187, 220, 340, 374, 748, 935, 1870, 3740, 5689, 11378, 22756, 28445, 56890, 62579, 96713, 113780, 125158, 193426, 250316, 312895, 386852, 483565, 625790, 967130, 1063843, 1251580, 1934260, 2127686, 4255372, 5319215, 10638430, 21276860]

約数ペア:

[(1, 21276860), (2, 10638430), (4, 5319215), (5, 4255372), (10, 2127686), (11, 1934260), (17, 1251580), (20, 1063843), (22, 967130), (34, 625790), (44, 483565), (55, 386852), (68, 312895), (85, 250316), (110, 193426), (170, 125158), (187, 113780), (220, 96713), (340, 62579), (374, 56890), (748, 28445), (935, 22756), (1870, 11378), (3740, 5689)]