20934531

素因数分解:

$3^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{661}}^1$

素因数の和:713

約数の個数: 40

約数和(自身を含む): 34604064

約数和(自身を除く): 13669533

約数列:

[1, 3, 9, 17, 23, 27, 51, 69, 81, 153, 207, 391, 459, 621, 661, 1173, 1377, 1863, 1983, 3519, 5949, 10557, 11237, 15203, 17847, 31671, 33711, 45609, 53541, 101133, 136827, 258451, 303399, 410481, 775353, 910197, 1231443, 2326059, 6978177, 20934531]

約数ペア:

[(1, 20934531), (3, 6978177), (9, 2326059), (17, 1231443), (23, 910197), (27, 775353), (51, 410481), (69, 303399), (81, 258451), (153, 136827), (207, 101133), (391, 53541), (459, 45609), (621, 33711), (661, 31671), (1173, 17847), (1377, 15203), (1863, 11237), (1983, 10557), (3519, 5949)]