19996816

素因数分解:

$2^4\times 7^1\times {\mathrm{19}}^1\times {\mathrm{9397}}^1$

素因数の和:9431

約数の個数: 40

約数和(自身を含む): 46614080

約数和(自身を除く): 26617264

約数列:

[1, 2, 4, 7, 8, 14, 16, 19, 28, 38, 56, 76, 112, 133, 152, 266, 304, 532, 1064, 2128, 9397, 18794, 37588, 65779, 75176, 131558, 150352, 178543, 263116, 357086, 526232, 714172, 1052464, 1249801, 1428344, 2499602, 2856688, 4999204, 9998408, 19996816]

約数ペア:

[(1, 19996816), (2, 9998408), (4, 4999204), (7, 2856688), (8, 2499602), (14, 1428344), (16, 1249801), (19, 1052464), (28, 714172), (38, 526232), (56, 357086), (76, 263116), (112, 178543), (133, 150352), (152, 131558), (266, 75176), (304, 65779), (532, 37588), (1064, 18794), (2128, 9397)]