16561996

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{19}}^1\times {\mathrm{1801}}^1$

素因数の和:1846

約数の個数: 36

約数和(自身を含む): 33553240

約数和(自身を除く): 16991244

約数列:

[1, 2, 4, 11, 19, 22, 38, 44, 76, 121, 209, 242, 418, 484, 836, 1801, 2299, 3602, 4598, 7204, 9196, 19811, 34219, 39622, 68438, 79244, 136876, 217921, 376409, 435842, 752818, 871684, 1505636, 4140499, 8280998, 16561996]

約数ペア:

[(1, 16561996), (2, 8280998), (4, 4140499), (11, 1505636), (19, 871684), (22, 752818), (38, 435842), (44, 376409), (76, 217921), (121, 136876), (209, 79244), (242, 68438), (418, 39622), (484, 34219), (836, 19811), (1801, 9196), (2299, 7204), (3602, 4598)]