18878804

素因数分解:

$2^2\times 7^1\times {\mathrm{127}}^1\times {\mathrm{5309}}^1$

素因数の和:5447

約数の個数: 24

約数和(自身を含む): 38062080

約数和(自身を除く): 19183276

約数列:

[1, 2, 4, 7, 14, 28, 127, 254, 508, 889, 1778, 3556, 5309, 10618, 21236, 37163, 74326, 148652, 674243, 1348486, 2696972, 4719701, 9439402, 18878804]

約数ペア:

[(1, 18878804), (2, 9439402), (4, 4719701), (7, 2696972), (14, 1348486), (28, 674243), (127, 148652), (254, 74326), (508, 37163), (889, 21236), (1778, 10618), (3556, 5309)]