21947812

素因数分解:

$2^2\times {\mathrm{19}}^1\times {\mathrm{317}}^1\times {\mathrm{911}}^1$

素因数の和:1251

約数の個数: 24

約数和(自身を含む): 40602240

約数和(自身を除く): 18654428

約数列:

[1, 2, 4, 19, 38, 76, 317, 634, 911, 1268, 1822, 3644, 6023, 12046, 17309, 24092, 34618, 69236, 288787, 577574, 1155148, 5486953, 10973906, 21947812]

約数ペア:

[(1, 21947812), (2, 10973906), (4, 5486953), (19, 1155148), (38, 577574), (76, 288787), (317, 69236), (634, 34618), (911, 24092), (1268, 17309), (1822, 12046), (3644, 6023)]