21648904

素因数分解:

$2^3\times {\mathrm{19}}^1\times {\mathrm{142427}}^1$

素因数の和:142452

約数の個数: 16

約数和(自身を含む): 42728400

約数和(自身を除く): 21079496

約数列:

[1, 2, 4, 8, 19, 38, 76, 152, 142427, 284854, 569708, 1139416, 2706113, 5412226, 10824452, 21648904]

約数ペア:

[(1, 21648904), (2, 10824452), (4, 5412226), (8, 2706113), (19, 1139416), (38, 569708), (76, 284854), (152, 142427)]