21894369

素因数分解:

$3^1\times 7^1\times {\mathrm{41}}^1\times {\mathrm{59}}^1\times {\mathrm{431}}^1$

素因数の和:541

約数の個数: 32

約数和(自身を含む): 34836480

約数和(自身を除く): 12942111

約数列:

[1, 3, 7, 21, 41, 59, 123, 177, 287, 413, 431, 861, 1239, 1293, 2419, 3017, 7257, 9051, 16933, 17671, 25429, 50799, 53013, 76287, 123697, 178003, 371091, 534009, 1042589, 3127767, 7298123, 21894369]

約数ペア:

[(1, 21894369), (3, 7298123), (7, 3127767), (21, 1042589), (41, 534009), (59, 371091), (123, 178003), (177, 123697), (287, 76287), (413, 53013), (431, 50799), (861, 25429), (1239, 17671), (1293, 16933), (2419, 9051), (3017, 7257)]