19998406

素因数分解:

$2^1\times {\mathrm{41}}^1\times {\mathrm{47}}^1\times {\mathrm{5189}}^1$

素因数の和:5279

約数の個数: 16

約数和(自身を含む): 31389120

約数和(自身を除く): 11390714

約数列:

[1, 2, 41, 47, 82, 94, 1927, 3854, 5189, 10378, 212749, 243883, 425498, 487766, 9999203, 19998406]

約数ペア:

[(1, 19998406), (2, 9999203), (41, 487766), (47, 425498), (82, 243883), (94, 212749), (1927, 10378), (3854, 5189)]