20959641

素因数分解:

$3^4\times {\mathrm{19}}^1\times {\mathrm{13619}}^1$

素因数の和:13650

約数の個数: 20

約数和(自身を含む): 32960400

約数和(自身を除く): 12000759

約数列:

[1, 3, 9, 19, 27, 57, 81, 171, 513, 1539, 13619, 40857, 122571, 258761, 367713, 776283, 1103139, 2328849, 6986547, 20959641]

約数ペア:

[(1, 20959641), (3, 6986547), (9, 2328849), (19, 1103139), (27, 776283), (57, 367713), (81, 258761), (171, 122571), (513, 40857), (1539, 13619)]