21346928

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{107}}^1\times {\mathrm{337}}^1$

素因数の和:489

約数の個数: 40

約数和(自身を含む): 43001712

約数和(自身を除く): 21654784

約数列:

[1, 2, 4, 8, 16, 37, 74, 107, 148, 214, 296, 337, 428, 592, 674, 856, 1348, 1712, 2696, 3959, 5392, 7918, 12469, 15836, 24938, 31672, 36059, 49876, 63344, 72118, 99752, 144236, 199504, 288472, 576944, 1334183, 2668366, 5336732, 10673464, 21346928]

約数ペア:

[(1, 21346928), (2, 10673464), (4, 5336732), (8, 2668366), (16, 1334183), (37, 576944), (74, 288472), (107, 199504), (148, 144236), (214, 99752), (296, 72118), (337, 63344), (428, 49876), (592, 36059), (674, 31672), (856, 24938), (1348, 15836), (1712, 12469), (2696, 7918), (3959, 5392)]