20843908

素因数分解:

$2^2\times {\mathrm{41}}^1\times {\mathrm{149}}^1\times {\mathrm{853}}^1$

素因数の和:1047

約数の個数: 24

約数和(自身を含む): 37661400

約数和(自身を除く): 16817492

約数列:

[1, 2, 4, 41, 82, 149, 164, 298, 596, 853, 1706, 3412, 6109, 12218, 24436, 34973, 69946, 127097, 139892, 254194, 508388, 5210977, 10421954, 20843908]

約数ペア:

[(1, 20843908), (2, 10421954), (4, 5210977), (41, 508388), (82, 254194), (149, 139892), (164, 127097), (298, 69946), (596, 34973), (853, 24436), (1706, 12218), (3412, 6109)]