18698416

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{131}}^1\times {\mathrm{811}}^1$

素因数の和:961

約数の個数: 40

約数和(自身を含む): 39872448

約数和(自身を除く): 21174032

約数列:

[1, 2, 4, 8, 11, 16, 22, 44, 88, 131, 176, 262, 524, 811, 1048, 1441, 1622, 2096, 2882, 3244, 5764, 6488, 8921, 11528, 12976, 17842, 23056, 35684, 71368, 106241, 142736, 212482, 424964, 849928, 1168651, 1699856, 2337302, 4674604, 9349208, 18698416]

約数ペア:

[(1, 18698416), (2, 9349208), (4, 4674604), (8, 2337302), (11, 1699856), (16, 1168651), (22, 849928), (44, 424964), (88, 212482), (131, 142736), (176, 106241), (262, 71368), (524, 35684), (811, 23056), (1048, 17842), (1441, 12976), (1622, 11528), (2096, 8921), (2882, 6488), (3244, 5764)]