21138074890

素因数分解:

$2^1\times 5^1\times {\mathrm{17}}^1\times {\mathrm{1229}}^1\times {\mathrm{101173}}^1$

素因数の和:102426

約数の個数: 32

約数和(自身を含む): 40319862480

約数和(自身を除く): 19181787590

約数列:

[1, 2, 5, 10, 17, 34, 85, 170, 1229, 2458, 6145, 12290, 20893, 41786, 101173, 104465, 202346, 208930, 505865, 1011730, 1719941, 3439882, 8599705, 17199410, 124341617, 248683234, 621708085, 1243416170, 2113807489, 4227614978, 10569037445, 21138074890]

約数ペア:

[(1, 21138074890), (2, 10569037445), (5, 4227614978), (10, 2113807489), (17, 1243416170), (34, 621708085), (85, 248683234), (170, 124341617), (1229, 17199410), (2458, 8599705), (6145, 3439882), (12290, 1719941), (20893, 1011730), (41786, 505865), (101173, 208930), (104465, 202346)]