21164804

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{127}}^1\times {\mathrm{683}}^1$

素因数の和:875

約数の個数: 24

約数和(自身を含む): 37997568

約数和(自身を除く): 16832764

約数列:

[1, 2, 4, 61, 122, 127, 244, 254, 508, 683, 1366, 2732, 7747, 15494, 30988, 41663, 83326, 86741, 166652, 173482, 346964, 5291201, 10582402, 21164804]

約数ペア:

[(1, 21164804), (2, 10582402), (4, 5291201), (61, 346964), (122, 173482), (127, 166652), (244, 86741), (254, 83326), (508, 41663), (683, 30988), (1366, 15494), (2732, 7747)]