21474980

素因数分解:

$2^2\times 5^1\times {\mathrm{41}}^1\times {\mathrm{26189}}^1$

素因数の和:26239

約数の個数: 24

約数和(自身を含む): 46199160

約数和(自身を除く): 24724180

約数列:

[1, 2, 4, 5, 10, 20, 41, 82, 164, 205, 410, 820, 26189, 52378, 104756, 130945, 261890, 523780, 1073749, 2147498, 4294996, 5368745, 10737490, 21474980]

約数ペア:

[(1, 21474980), (2, 10737490), (4, 5368745), (5, 4294996), (10, 2147498), (20, 1073749), (41, 523780), (82, 261890), (164, 130945), (205, 104756), (410, 52378), (820, 26189)]