21043990

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{113}}^1\times {\mathrm{1693}}^1$

素因数の和:1824

約数の個数: 32

約数和(自身を含む): 41713056

約数和(自身を除く): 20669066

約数列:

[1, 2, 5, 10, 11, 22, 55, 110, 113, 226, 565, 1130, 1243, 1693, 2486, 3386, 6215, 8465, 12430, 16930, 18623, 37246, 93115, 186230, 191309, 382618, 956545, 1913090, 2104399, 4208798, 10521995, 21043990]

約数ペア:

[(1, 21043990), (2, 10521995), (5, 4208798), (10, 2104399), (11, 1913090), (22, 956545), (55, 382618), (110, 191309), (113, 186230), (226, 93115), (565, 37246), (1130, 18623), (1243, 16930), (1693, 12430), (2486, 8465), (3386, 6215)]