20291217428

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{439}}^1\times {\mathrm{608177}}^1$

素因数の和:608639

約数の個数: 24

約数和(自身を含む): 37463764800

約数和(自身を除く): 17172547372

約数列:

[1, 2, 4, 19, 38, 76, 439, 878, 1756, 8341, 16682, 33364, 608177, 1216354, 2432708, 11555363, 23110726, 46221452, 266989703, 533979406, 1067958812, 5072804357, 10145608714, 20291217428]

約数ペア:

[(1, 20291217428), (2, 10145608714), (4, 5072804357), (19, 1067958812), (38, 533979406), (76, 266989703), (439, 46221452), (878, 23110726), (1756, 11555363), (8341, 2432708), (16682, 1216354), (33364, 608177)]