21899780

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{19}}^1\times {\mathrm{8233}}^1$

素因数の和:8268

約数の個数: 48

約数和(自身を含む): 55332480

約数和(自身を除く): 33432700

約数列:

[1, 2, 4, 5, 7, 10, 14, 19, 20, 28, 35, 38, 70, 76, 95, 133, 140, 190, 266, 380, 532, 665, 1330, 2660, 8233, 16466, 32932, 41165, 57631, 82330, 115262, 156427, 164660, 230524, 288155, 312854, 576310, 625708, 782135, 1094989, 1152620, 1564270, 2189978, 3128540, 4379956, 5474945, 10949890, 21899780]

約数ペア:

[(1, 21899780), (2, 10949890), (4, 5474945), (5, 4379956), (7, 3128540), (10, 2189978), (14, 1564270), (19, 1152620), (20, 1094989), (28, 782135), (35, 625708), (38, 576310), (70, 312854), (76, 288155), (95, 230524), (133, 164660), (140, 156427), (190, 115262), (266, 82330), (380, 57631), (532, 41165), (665, 32932), (1330, 16466), (2660, 8233)]