18880638

素因数分解:

$2^1\times 3^1\times 7^1\times {\mathrm{89}}^1\times {\mathrm{5051}}^1$

素因数の和:5152

約数の個数: 32

約数和(自身を含む): 43649280

約数和(自身を除く): 24768642

約数列:

[1, 2, 3, 6, 7, 14, 21, 42, 89, 178, 267, 534, 623, 1246, 1869, 3738, 5051, 10102, 15153, 30306, 35357, 70714, 106071, 212142, 449539, 899078, 1348617, 2697234, 3146773, 6293546, 9440319, 18880638]

約数ペア:

[(1, 18880638), (2, 9440319), (3, 6293546), (6, 3146773), (7, 2697234), (14, 1348617), (21, 899078), (42, 449539), (89, 212142), (178, 106071), (267, 70714), (534, 35357), (623, 30306), (1246, 15153), (1869, 10102), (3738, 5051)]