20390836

素因数分解:

$2^2\times {\mathrm{61}}^1\times {\mathrm{193}}^1\times {\mathrm{433}}^1$

素因数の和:691

約数の個数: 24

約数和(自身を含む): 36541064

約数和(自身を除く): 16150228

約数列:

[1, 2, 4, 61, 122, 193, 244, 386, 433, 772, 866, 1732, 11773, 23546, 26413, 47092, 52826, 83569, 105652, 167138, 334276, 5097709, 10195418, 20390836]

約数ペア:

[(1, 20390836), (2, 10195418), (4, 5097709), (61, 334276), (122, 167138), (193, 105652), (244, 83569), (386, 52826), (433, 47092), (772, 26413), (866, 23546), (1732, 11773)]