19818502

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{23}}^1\times {\mathrm{53}}^1\times {\mathrm{739}}^1$

素因数の和:828

約数の個数: 32

約数和(自身を含む): 34525440

約数和(自身を除く): 14706938

約数列:

[1, 2, 11, 22, 23, 46, 53, 106, 253, 506, 583, 739, 1166, 1219, 1478, 2438, 8129, 13409, 16258, 16997, 26818, 33994, 39167, 78334, 186967, 373934, 430837, 861674, 900841, 1801682, 9909251, 19818502]

約数ペア:

[(1, 19818502), (2, 9909251), (11, 1801682), (22, 900841), (23, 861674), (46, 430837), (53, 373934), (106, 186967), (253, 78334), (506, 39167), (583, 33994), (739, 26818), (1166, 16997), (1219, 16258), (1478, 13409), (2438, 8129)]