218517873

素因数分解:

$3^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{89}}^1\times {\mathrm{2719}}^1$

素因数の和:2861

約数の個数: 32

約数和(自身を含む): 344678400

約数和(自身を除く): 126160527

約数列:

[1, 3, 7, 21, 43, 89, 129, 267, 301, 623, 903, 1869, 2719, 3827, 8157, 11481, 19033, 26789, 57099, 80367, 116917, 241991, 350751, 725973, 818419, 1693937, 2455257, 5081811, 10405613, 31216839, 72839291, 218517873]

約数ペア:

[(1, 218517873), (3, 72839291), (7, 31216839), (21, 10405613), (43, 5081811), (89, 2455257), (129, 1693937), (267, 818419), (301, 725973), (623, 350751), (903, 241991), (1869, 116917), (2719, 80367), (3827, 57099), (8157, 26789), (11481, 19033)]