18916810

素因数分解:

$2^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{7477}}^1$

素因数の和:7518

約数の個数: 32

約数和(自身を含む): 38765952

約数和(自身を除く): 19849142

約数列:

[1, 2, 5, 10, 11, 22, 23, 46, 55, 110, 115, 230, 253, 506, 1265, 2530, 7477, 14954, 37385, 74770, 82247, 164494, 171971, 343942, 411235, 822470, 859855, 1719710, 1891681, 3783362, 9458405, 18916810]

約数ペア:

[(1, 18916810), (2, 9458405), (5, 3783362), (10, 1891681), (11, 1719710), (22, 859855), (23, 822470), (46, 411235), (55, 343942), (110, 171971), (115, 164494), (230, 82247), (253, 74770), (506, 37385), (1265, 14954), (2530, 7477)]