19984424

素因数分解:

$2^3\times {\mathrm{23}}^1\times {\mathrm{313}}^1\times {\mathrm{347}}^1$

素因数の和:689

約数の個数: 32

約数和(自身を含む): 39337920

約数和(自身を除く): 19353496

約数列:

[1, 2, 4, 8, 23, 46, 92, 184, 313, 347, 626, 694, 1252, 1388, 2504, 2776, 7199, 7981, 14398, 15962, 28796, 31924, 57592, 63848, 108611, 217222, 434444, 868888, 2498053, 4996106, 9992212, 19984424]

約数ペア:

[(1, 19984424), (2, 9992212), (4, 4996106), (8, 2498053), (23, 868888), (46, 434444), (92, 217222), (184, 108611), (313, 63848), (347, 57592), (626, 31924), (694, 28796), (1252, 15962), (1388, 14398), (2504, 7981), (2776, 7199)]