66899248

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{321631}}^1$

素因数の和:321652

約数の個数: 20

約数和(自身を含む): 139588288

約数和(自身を除く): 72689040

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 321631, 643262, 1286524, 2573048, 4181203, 5146096, 8362406, 16724812, 33449624, 66899248]

約数ペア:

[(1, 66899248), (2, 33449624), (4, 16724812), (8, 8362406), (13, 5146096), (16, 4181203), (26, 2573048), (52, 1286524), (104, 643262), (208, 321631)]