21443818

素因数分解:

$2^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{29}}^2\times {\mathrm{61}}^1$

素因数の和:151

約数の個数: 48

約数和(自身を含む): 38881440

約数和(自身を除く): 17437622

約数列:

[1, 2, 11, 19, 22, 29, 38, 58, 61, 122, 209, 319, 418, 551, 638, 671, 841, 1102, 1159, 1342, 1682, 1769, 2318, 3538, 6061, 9251, 12122, 12749, 15979, 18502, 19459, 25498, 31958, 33611, 38918, 51301, 67222, 102602, 175769, 351538, 369721, 564311, 739442, 974719, 1128622, 1949438, 10721909, 21443818]

約数ペア:

[(1, 21443818), (2, 10721909), (11, 1949438), (19, 1128622), (22, 974719), (29, 739442), (38, 564311), (58, 369721), (61, 351538), (122, 175769), (209, 102602), (319, 67222), (418, 51301), (551, 38918), (638, 33611), (671, 31958), (841, 25498), (1102, 19459), (1159, 18502), (1342, 15979), (1682, 12749), (1769, 12122), (2318, 9251), (3538, 6061)]