20019706

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{79}}^1\times {\mathrm{787}}^1$

素因数の和:898

約数の個数: 32

約数和(自身を含む): 36311040

約数和(自身を除く): 16291334

約数列:

[1, 2, 7, 14, 23, 46, 79, 158, 161, 322, 553, 787, 1106, 1574, 1817, 3634, 5509, 11018, 12719, 18101, 25438, 36202, 62173, 124346, 126707, 253414, 435211, 870422, 1429979, 2859958, 10009853, 20019706]

約数ペア:

[(1, 20019706), (2, 10009853), (7, 2859958), (14, 1429979), (23, 870422), (46, 435211), (79, 253414), (158, 126707), (161, 124346), (322, 62173), (553, 36202), (787, 25438), (1106, 18101), (1574, 12719), (1817, 11018), (3634, 5509)]