19900578

素因数分解:

$2^1\times 3^1\times {\mathrm{83}}^1\times {\mathrm{89}}^1\times {\mathrm{449}}^1$

素因数の和:626

約数の個数: 32

約数和(自身を含む): 40824000

約数和(自身を除く): 20923422

約数列:

[1, 2, 3, 6, 83, 89, 166, 178, 249, 267, 449, 498, 534, 898, 1347, 2694, 7387, 14774, 22161, 37267, 39961, 44322, 74534, 79922, 111801, 119883, 223602, 239766, 3316763, 6633526, 9950289, 19900578]

約数ペア:

[(1, 19900578), (2, 9950289), (3, 6633526), (6, 3316763), (83, 239766), (89, 223602), (166, 119883), (178, 111801), (249, 79922), (267, 74534), (449, 44322), (498, 39961), (534, 37267), (898, 22161), (1347, 14774), (2694, 7387)]