20505213

素因数分解:

$3^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{5827}}^1$

素因数の和:5873

約数の個数: 24

約数和(自身を含む): 32730048

約数和(自身を除く): 12224835

約数列:

[1, 3, 9, 17, 23, 51, 69, 153, 207, 391, 1173, 3519, 5827, 17481, 52443, 99059, 134021, 297177, 402063, 891531, 1206189, 2278357, 6835071, 20505213]

約数ペア:

[(1, 20505213), (3, 6835071), (9, 2278357), (17, 1206189), (23, 891531), (51, 402063), (69, 297177), (153, 134021), (207, 99059), (391, 52443), (1173, 17481), (3519, 5827)]