20664166

素因数分解:

$2^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{43}}^1\times {\mathrm{337}}^1$

素因数の和:436

約数の個数: 32

約数和(自身を含む): 34265088

約数和(自身を除く): 13600922

約数列:

[1, 2, 23, 31, 43, 46, 62, 86, 337, 674, 713, 989, 1333, 1426, 1978, 2666, 7751, 10447, 14491, 15502, 20894, 28982, 30659, 61318, 240281, 333293, 449221, 480562, 666586, 898442, 10332083, 20664166]

約数ペア:

[(1, 20664166), (2, 10332083), (23, 898442), (31, 666586), (43, 480562), (46, 449221), (62, 333293), (86, 240281), (337, 61318), (674, 30659), (713, 28982), (989, 20894), (1333, 15502), (1426, 14491), (1978, 10447), (2666, 7751)]