253327568

素因数分解:

$2^4\times {\mathrm{13}}^1\times {\mathrm{1217921}}^1$

素因数の和:1217942

約数の個数: 20

約数和(自身を含む): 528578148

約数和(自身を除く): 275250580

約数列:

[1, 2, 4, 8, 13, 16, 26, 52, 104, 208, 1217921, 2435842, 4871684, 9743368, 15832973, 19486736, 31665946, 63331892, 126663784, 253327568]

約数ペア:

[(1, 253327568), (2, 126663784), (4, 63331892), (8, 31665946), (13, 19486736), (16, 15832973), (26, 9743368), (52, 4871684), (104, 2435842), (208, 1217921)]