21986406

素因数分解:

$2^1\times 3^2\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{5527}}^1$

素因数の和:5565

約数の個数: 48

約数和(自身を含む): 54329184

約数和(自身を除く): 32342778

約数列:

[1, 2, 3, 6, 9, 13, 17, 18, 26, 34, 39, 51, 78, 102, 117, 153, 221, 234, 306, 442, 663, 1326, 1989, 3978, 5527, 11054, 16581, 33162, 49743, 71851, 93959, 99486, 143702, 187918, 215553, 281877, 431106, 563754, 646659, 845631, 1221467, 1293318, 1691262, 2442934, 3664401, 7328802, 10993203, 21986406]

約数ペア:

[(1, 21986406), (2, 10993203), (3, 7328802), (6, 3664401), (9, 2442934), (13, 1691262), (17, 1293318), (18, 1221467), (26, 845631), (34, 646659), (39, 563754), (51, 431106), (78, 281877), (102, 215553), (117, 187918), (153, 143702), (221, 99486), (234, 93959), (306, 71851), (442, 49743), (663, 33162), (1326, 16581), (1989, 11054), (3978, 5527)]