21310190

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{8423}}^1$

素因数の和:8464

約数の個数: 32

約数和(自身を含む): 43670016

約数和(自身を除く): 22359826

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 8423, 16846, 42115, 84230, 92653, 185306, 193729, 387458, 463265, 926530, 968645, 1937290, 2131019, 4262038, 10655095, 21310190]

約数ペア:

[(1, 21310190), (2, 10655095), (5, 4262038), (10, 2131019), (11, 1937290), (22, 968645), (23, 926530), (46, 463265), (55, 387458), (110, 193729), (115, 185306), (230, 92653), (253, 84230), (506, 42115), (1265, 16846), (2530, 8423)]