20691632

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{3209}}^1$

素因数の和:3261

約数の個数: 40

約数和(自身を含む): 44580480

約数和(自身を除く): 23888848

約数列:

[1, 2, 4, 8, 13, 16, 26, 31, 52, 62, 104, 124, 208, 248, 403, 496, 806, 1612, 3209, 3224, 6418, 6448, 12836, 25672, 41717, 51344, 83434, 99479, 166868, 198958, 333736, 397916, 667472, 795832, 1293227, 1591664, 2586454, 5172908, 10345816, 20691632]

約数ペア:

[(1, 20691632), (2, 10345816), (4, 5172908), (8, 2586454), (13, 1591664), (16, 1293227), (26, 795832), (31, 667472), (52, 397916), (62, 333736), (104, 198958), (124, 166868), (208, 99479), (248, 83434), (403, 51344), (496, 41717), (806, 25672), (1612, 12836), (3209, 6448), (3224, 6418)]