21775842

素因数分解:

$2^1\times 3^2\times {\mathrm{11}}^1\times {\mathrm{71}}^1\times {\mathrm{1549}}^1$

素因数の和:1639

約数の個数: 48

約数和(自身を含む): 52228800

約数和(自身を除く): 30452958

約数列:

[1, 2, 3, 6, 9, 11, 18, 22, 33, 66, 71, 99, 142, 198, 213, 426, 639, 781, 1278, 1549, 1562, 2343, 3098, 4647, 4686, 7029, 9294, 13941, 14058, 17039, 27882, 34078, 51117, 102234, 109979, 153351, 219958, 306702, 329937, 659874, 989811, 1209769, 1979622, 2419538, 3629307, 7258614, 10887921, 21775842]

約数ペア:

[(1, 21775842), (2, 10887921), (3, 7258614), (6, 3629307), (9, 2419538), (11, 1979622), (18, 1209769), (22, 989811), (33, 659874), (66, 329937), (71, 306702), (99, 219958), (142, 153351), (198, 109979), (213, 102234), (426, 51117), (639, 34078), (781, 27882), (1278, 17039), (1549, 14058), (1562, 13941), (2343, 9294), (3098, 7029), (4647, 4686)]