21284514

素因数分解:

$2^1\times 3^2\times {\mathrm{47}}^1\times {\mathrm{139}}^1\times {\mathrm{181}}^1$

素因数の和:375

約数の個数: 48

約数和(自身を含む): 47698560

約数和(自身を除く): 26414046

約数列:

[1, 2, 3, 6, 9, 18, 47, 94, 139, 141, 181, 278, 282, 362, 417, 423, 543, 834, 846, 1086, 1251, 1629, 2502, 3258, 6533, 8507, 13066, 17014, 19599, 25159, 25521, 39198, 50318, 51042, 58797, 75477, 76563, 117594, 150954, 153126, 226431, 452862, 1182473, 2364946, 3547419, 7094838, 10642257, 21284514]

約数ペア:

[(1, 21284514), (2, 10642257), (3, 7094838), (6, 3547419), (9, 2364946), (18, 1182473), (47, 452862), (94, 226431), (139, 153126), (141, 150954), (181, 117594), (278, 76563), (282, 75477), (362, 58797), (417, 51042), (423, 50318), (543, 39198), (834, 25521), (846, 25159), (1086, 19599), (1251, 17014), (1629, 13066), (2502, 8507), (3258, 6533)]