20643048279

素因数分解:

$3^2\times 7^1\times {\mathrm{29}}^1\times {\mathrm{151}}^1\times {\mathrm{74827}}^1$

素因数の和:75020

約数の個数: 48

約数和(自身を含む): 35486430720

約数和(自身を除く): 14843382441

約数列:

[1, 3, 7, 9, 21, 29, 63, 87, 151, 203, 261, 453, 609, 1057, 1359, 1827, 3171, 4379, 9513, 13137, 30653, 39411, 74827, 91959, 224481, 275877, 523789, 673443, 1571367, 2169983, 4714101, 6509949, 11298877, 15189881, 19529847, 33896631, 45569643, 79092139, 101689893, 136708929, 237276417, 327667433, 711829251, 983002299, 2293672031, 2949006897, 6881016093, 20643048279]

約数ペア:

[(1, 20643048279), (3, 6881016093), (7, 2949006897), (9, 2293672031), (21, 983002299), (29, 711829251), (63, 327667433), (87, 237276417), (151, 136708929), (203, 101689893), (261, 79092139), (453, 45569643), (609, 33896631), (1057, 19529847), (1359, 15189881), (1827, 11298877), (3171, 6509949), (4379, 4714101), (9513, 2169983), (13137, 1571367), (30653, 673443), (39411, 523789), (74827, 275877), (91959, 224481)]