21183943

素因数分解:

${\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{73}}^1$

素因数の和:175

約数の個数: 32

約数和(自身を含む): 25915392

約数和(自身を除く): 4731449

約数列:

[1, 11, 23, 31, 37, 73, 253, 341, 407, 713, 803, 851, 1147, 1679, 2263, 2701, 7843, 9361, 12617, 18469, 24893, 26381, 29711, 52049, 62123, 83731, 290191, 572539, 683353, 921041, 1925813, 21183943]

約数ペア:

[(1, 21183943), (11, 1925813), (23, 921041), (31, 683353), (37, 572539), (73, 290191), (253, 83731), (341, 62123), (407, 52049), (713, 29711), (803, 26381), (851, 24893), (1147, 18469), (1679, 12617), (2263, 9361), (2701, 7843)]