19554784

素因数分解:

$2^5\times {\mathrm{23}}^1\times {\mathrm{163}}^2$

素因数の和:359

約数の個数: 36

約数和(自身を含む): 40420296

約数和(自身を除く): 20865512

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 92, 163, 184, 326, 368, 652, 736, 1304, 2608, 3749, 5216, 7498, 14996, 26569, 29992, 53138, 59984, 106276, 119968, 212552, 425104, 611087, 850208, 1222174, 2444348, 4888696, 9777392, 19554784]

約数ペア:

[(1, 19554784), (2, 9777392), (4, 4888696), (8, 2444348), (16, 1222174), (23, 850208), (32, 611087), (46, 425104), (92, 212552), (163, 119968), (184, 106276), (326, 59984), (368, 53138), (652, 29992), (736, 26569), (1304, 14996), (2608, 7498), (3749, 5216)]