21638806

素因数分解:

$2^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{73}}^1\times {\mathrm{683}}^1$

素因数の和:796

約数の個数: 32

約数和(自身を含む): 38873088

約数和(自身を除く): 17234282

約数列:

[1, 2, 7, 14, 31, 62, 73, 146, 217, 434, 511, 683, 1022, 1366, 2263, 4526, 4781, 9562, 15841, 21173, 31682, 42346, 49859, 99718, 148211, 296422, 349013, 698026, 1545629, 3091258, 10819403, 21638806]

約数ペア:

[(1, 21638806), (2, 10819403), (7, 3091258), (14, 1545629), (31, 698026), (62, 349013), (73, 296422), (146, 148211), (217, 99718), (434, 49859), (511, 42346), (683, 31682), (1022, 21173), (1366, 15841), (2263, 9562), (4526, 4781)]