19738972

素因数分解:

$2^2\times {\mathrm{11}}^2\times {\mathrm{17}}^1\times {\mathrm{2399}}^1$

素因数の和:2442

約数の個数: 36

約数和(自身を含む): 40219200

約数和(自身を除く): 20480228

約数列:

[1, 2, 4, 11, 17, 22, 34, 44, 68, 121, 187, 242, 374, 484, 748, 2057, 2399, 4114, 4798, 8228, 9596, 26389, 40783, 52778, 81566, 105556, 163132, 290279, 448613, 580558, 897226, 1161116, 1794452, 4934743, 9869486, 19738972]

約数ペア:

[(1, 19738972), (2, 9869486), (4, 4934743), (11, 1794452), (17, 1161116), (22, 897226), (34, 580558), (44, 448613), (68, 290279), (121, 163132), (187, 105556), (242, 81566), (374, 52778), (484, 40783), (748, 26389), (2057, 9596), (2399, 8228), (4114, 4798)]