20389204

素因数分解:

$2^2\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^3$

素因数の和:121

約数の個数: 48

約数和(自身を含む): 42436800

約数和(自身を除く): 22047596

約数列:

[1, 2, 4, 11, 19, 22, 29, 38, 44, 58, 76, 116, 209, 319, 418, 551, 638, 836, 841, 1102, 1276, 1682, 2204, 3364, 6061, 9251, 12122, 15979, 18502, 24244, 24389, 31958, 37004, 48778, 63916, 97556, 175769, 268279, 351538, 463391, 536558, 703076, 926782, 1073116, 1853564, 5097301, 10194602, 20389204]

約数ペア:

[(1, 20389204), (2, 10194602), (4, 5097301), (11, 1853564), (19, 1073116), (22, 926782), (29, 703076), (38, 536558), (44, 463391), (58, 351538), (76, 268279), (116, 175769), (209, 97556), (319, 63916), (418, 48778), (551, 37004), (638, 31958), (836, 24389), (841, 24244), (1102, 18502), (1276, 15979), (1682, 12122), (2204, 9251), (3364, 6061)]