21990147248

素因数分解:

$2^4\times {\mathrm{37}}^1\times {\mathrm{37145519}}^1$

素因数の和:37145564

約数の個数: 20

約数和(自身を含む): 43757422560

約数和(自身を除く): 21767275312

約数列:

[1, 2, 4, 8, 16, 37, 74, 148, 296, 592, 37145519, 74291038, 148582076, 297164152, 594328304, 1374384203, 2748768406, 5497536812, 10995073624, 21990147248]

約数ペア:

[(1, 21990147248), (2, 10995073624), (4, 5497536812), (8, 2748768406), (16, 1374384203), (37, 594328304), (74, 297164152), (148, 148582076), (296, 74291038), (592, 37145519)]