21740264

素因数分解:

$2^3\times 7^1\times {\mathrm{13}}^1\times {\mathrm{29863}}^1$

素因数の和:29889

約数の個数: 32

約数和(自身を含む): 50171520

約数和(自身を除く): 28431256

約数列:

[1, 2, 4, 7, 8, 13, 14, 26, 28, 52, 56, 91, 104, 182, 364, 728, 29863, 59726, 119452, 209041, 238904, 388219, 418082, 776438, 836164, 1552876, 1672328, 2717533, 3105752, 5435066, 10870132, 21740264]

約数ペア:

[(1, 21740264), (2, 10870132), (4, 5435066), (7, 3105752), (8, 2717533), (13, 1672328), (14, 1552876), (26, 836164), (28, 776438), (52, 418082), (56, 388219), (91, 238904), (104, 209041), (182, 119452), (364, 59726), (728, 29863)]