20401518

素因数分解:

$2^1\times 3^1\times {\mathrm{41}}^1\times {\mathrm{239}}^1\times {\mathrm{347}}^1$

素因数の和:632

約数の個数: 32

約数和(自身を含む): 42094080

約数和(自身を除く): 21692562

約数列:

[1, 2, 3, 6, 41, 82, 123, 239, 246, 347, 478, 694, 717, 1041, 1434, 2082, 9799, 14227, 19598, 28454, 29397, 42681, 58794, 82933, 85362, 165866, 248799, 497598, 3400253, 6800506, 10200759, 20401518]

約数ペア:

[(1, 20401518), (2, 10200759), (3, 6800506), (6, 3400253), (41, 497598), (82, 248799), (123, 165866), (239, 85362), (246, 82933), (347, 58794), (478, 42681), (694, 29397), (717, 28454), (1041, 19598), (1434, 14227), (2082, 9799)]