21385210

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{27773}}^1$

素因数の和:27798

約数の個数: 32

約数和(自身を含む): 47993472

約数和(自身を除く): 26608262

約数列:

[1, 2, 5, 7, 10, 11, 14, 22, 35, 55, 70, 77, 110, 154, 385, 770, 27773, 55546, 138865, 194411, 277730, 305503, 388822, 611006, 972055, 1527515, 1944110, 2138521, 3055030, 4277042, 10692605, 21385210]

約数ペア:

[(1, 21385210), (2, 10692605), (5, 4277042), (7, 3055030), (10, 2138521), (11, 1944110), (14, 1527515), (22, 972055), (35, 611006), (55, 388822), (70, 305503), (77, 277730), (110, 194411), (154, 138865), (385, 55546), (770, 27773)]