19900232

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{101}}^1\times {\mathrm{2239}}^1$

素因数の和:2357

約数の個数: 32

約数和(自身を含む): 41126400

約数和(自身を除く): 21226168

約数列:

[1, 2, 4, 8, 11, 22, 44, 88, 101, 202, 404, 808, 1111, 2222, 2239, 4444, 4478, 8888, 8956, 17912, 24629, 49258, 98516, 197032, 226139, 452278, 904556, 1809112, 2487529, 4975058, 9950116, 19900232]

約数ペア:

[(1, 19900232), (2, 9950116), (4, 4975058), (8, 2487529), (11, 1809112), (22, 904556), (44, 452278), (88, 226139), (101, 197032), (202, 98516), (404, 49258), (808, 24629), (1111, 17912), (2222, 8956), (2239, 8888), (4444, 4478)]