20723212

素因数分解:

$2^2\times {\mathrm{53}}^1\times {\mathrm{239}}^1\times {\mathrm{409}}^1$

素因数の和:705

約数の個数: 24

約数和(自身を含む): 37195200

約数和(自身を除く): 16471988

約数列:

[1, 2, 4, 53, 106, 212, 239, 409, 478, 818, 956, 1636, 12667, 21677, 25334, 43354, 50668, 86708, 97751, 195502, 391004, 5180803, 10361606, 20723212]

約数ペア:

[(1, 20723212), (2, 10361606), (4, 5180803), (53, 391004), (106, 195502), (212, 97751), (239, 86708), (409, 50668), (478, 43354), (818, 25334), (956, 21677), (1636, 12667)]