21618850

素因数分解:

$2^1\times 5^2\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{1709}}^1$

素因数の和:1755

約数の個数: 48

約数和(自身を含む): 45800640

約数和(自身を除く): 24181790

約数列:

[1, 2, 5, 10, 11, 22, 23, 25, 46, 50, 55, 110, 115, 230, 253, 275, 506, 550, 575, 1150, 1265, 1709, 2530, 3418, 6325, 8545, 12650, 17090, 18799, 37598, 39307, 42725, 78614, 85450, 93995, 187990, 196535, 393070, 432377, 469975, 864754, 939950, 982675, 1965350, 2161885, 4323770, 10809425, 21618850]

約数ペア:

[(1, 21618850), (2, 10809425), (5, 4323770), (10, 2161885), (11, 1965350), (22, 982675), (23, 939950), (25, 864754), (46, 469975), (50, 432377), (55, 393070), (110, 196535), (115, 187990), (230, 93995), (253, 85450), (275, 78614), (506, 42725), (550, 39307), (575, 37598), (1150, 18799), (1265, 17090), (1709, 12650), (2530, 8545), (3418, 6325)]