20495756

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{61}}^1\times {\mathrm{4421}}^1$

素因数の和:4505

約数の個数: 24

約数和(自身を含む): 38382960

約数和(自身を除く): 17887204

約数列:

[1, 2, 4, 19, 38, 61, 76, 122, 244, 1159, 2318, 4421, 4636, 8842, 17684, 83999, 167998, 269681, 335996, 539362, 1078724, 5123939, 10247878, 20495756]

約数ペア:

[(1, 20495756), (2, 10247878), (4, 5123939), (19, 1078724), (38, 539362), (61, 335996), (76, 269681), (122, 167998), (244, 83999), (1159, 17684), (2318, 8842), (4421, 4636)]