21235172

素因数分解:

$2^2\times 7^1\times {\mathrm{313}}^1\times {\mathrm{2423}}^1$

素因数の和:2747

約数の個数: 24

約数和(自身を含む): 42623616

約数和(自身を除く): 21388444

約数列:

[1, 2, 4, 7, 14, 28, 313, 626, 1252, 2191, 2423, 4382, 4846, 8764, 9692, 16961, 33922, 67844, 758399, 1516798, 3033596, 5308793, 10617586, 21235172]

約数ペア:

[(1, 21235172), (2, 10617586), (4, 5308793), (7, 3033596), (14, 1516798), (28, 758399), (313, 67844), (626, 33922), (1252, 16961), (2191, 9692), (2423, 8764), (4382, 4846)]