21651878

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{83}}^1\times {\mathrm{107}}^1$

素因数の和:268

約数の個数: 32

約数和(自身を含む): 35271936

約数和(自身を除く): 13620058

約数列:

[1, 2, 23, 46, 53, 83, 106, 107, 166, 214, 1219, 1909, 2438, 2461, 3818, 4399, 4922, 5671, 8798, 8881, 11342, 17762, 101177, 130433, 202354, 204263, 260866, 408526, 470693, 941386, 10825939, 21651878]

約数ペア:

[(1, 21651878), (2, 10825939), (23, 941386), (46, 470693), (53, 408526), (83, 260866), (106, 204263), (107, 202354), (166, 130433), (214, 101177), (1219, 17762), (1909, 11342), (2438, 8881), (2461, 8798), (3818, 5671), (4399, 4922)]