21256186

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{251}}^1\times {\mathrm{263}}^1$

素因数の和:546

約数の個数: 32

約数和(自身を含む): 38320128

約数和(自身を除く): 17063942

約数列:

[1, 2, 7, 14, 23, 46, 161, 251, 263, 322, 502, 526, 1757, 1841, 3514, 3682, 5773, 6049, 11546, 12098, 40411, 42343, 66013, 80822, 84686, 132026, 462091, 924182, 1518299, 3036598, 10628093, 21256186]

約数ペア:

[(1, 21256186), (2, 10628093), (7, 3036598), (14, 1518299), (23, 924182), (46, 462091), (161, 132026), (251, 84686), (263, 80822), (322, 66013), (502, 42343), (526, 40411), (1757, 12098), (1841, 11546), (3514, 6049), (3682, 5773)]