20478564

素因数分解:

$2^2\times 3^2\times {\mathrm{53}}^1\times {\mathrm{10733}}^1$

素因数の和:10796

約数の個数: 36

約数和(自身を含む): 52746876

約数和(自身を除く): 32268312

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 36, 53, 106, 159, 212, 318, 477, 636, 954, 1908, 10733, 21466, 32199, 42932, 64398, 96597, 128796, 193194, 386388, 568849, 1137698, 1706547, 2275396, 3413094, 5119641, 6826188, 10239282, 20478564]

約数ペア:

[(1, 20478564), (2, 10239282), (3, 6826188), (4, 5119641), (6, 3413094), (9, 2275396), (12, 1706547), (18, 1137698), (36, 568849), (53, 386388), (106, 193194), (159, 128796), (212, 96597), (318, 64398), (477, 42932), (636, 32199), (954, 21466), (1908, 10733)]