20491065

素因数分解:

$3^2\times 5^1\times 7^2\times {\mathrm{9293}}^1$

素因数の和:9318

約数の個数: 36

約数和(自身を含む): 41321124

約数和(自身を除く): 20830059

約数列:

[1, 3, 5, 7, 9, 15, 21, 35, 45, 49, 63, 105, 147, 245, 315, 441, 735, 2205, 9293, 27879, 46465, 65051, 83637, 139395, 195153, 325255, 418185, 455357, 585459, 975765, 1366071, 2276785, 2927295, 4098213, 6830355, 20491065]

約数ペア:

[(1, 20491065), (3, 6830355), (5, 4098213), (7, 2927295), (9, 2276785), (15, 1366071), (21, 975765), (35, 585459), (45, 455357), (49, 418185), (63, 325255), (105, 195153), (147, 139395), (245, 83637), (315, 65051), (441, 46465), (735, 27879), (2205, 9293)]