18897670

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{149}}^1\times {\mathrm{1153}}^1$

素因数の和:1320

約数の個数: 32

約数和(自身を含む): 37389600

約数和(自身を除く): 18491930

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 149, 298, 745, 1153, 1490, 1639, 2306, 3278, 5765, 8195, 11530, 12683, 16390, 25366, 63415, 126830, 171797, 343594, 858985, 1717970, 1889767, 3779534, 9448835, 18897670]

約数ペア:

[(1, 18897670), (2, 9448835), (5, 3779534), (10, 1889767), (11, 1717970), (22, 858985), (55, 343594), (110, 171797), (149, 126830), (298, 63415), (745, 25366), (1153, 16390), (1490, 12683), (1639, 11530), (2306, 8195), (3278, 5765)]