21464716

素因数分解:

$2^2\times 7^1\times {\mathrm{13}}^1\times {\mathrm{109}}^1\times {\mathrm{541}}^1$

素因数の和:674

約数の個数: 48

約数和(自身を含む): 46742080

約数和(自身を除く): 25277364

約数列:

[1, 2, 4, 7, 13, 14, 26, 28, 52, 91, 109, 182, 218, 364, 436, 541, 763, 1082, 1417, 1526, 2164, 2834, 3052, 3787, 5668, 7033, 7574, 9919, 14066, 15148, 19838, 28132, 39676, 49231, 58969, 98462, 117938, 196924, 235876, 412783, 766597, 825566, 1533194, 1651132, 3066388, 5366179, 10732358, 21464716]

約数ペア:

[(1, 21464716), (2, 10732358), (4, 5366179), (7, 3066388), (13, 1651132), (14, 1533194), (26, 825566), (28, 766597), (52, 412783), (91, 235876), (109, 196924), (182, 117938), (218, 98462), (364, 58969), (436, 49231), (541, 39676), (763, 28132), (1082, 19838), (1417, 15148), (1526, 14066), (2164, 9919), (2834, 7574), (3052, 7033), (3787, 5668)]