21763900

素因数分解:

$2^2\times 5^2\times {\mathrm{103}}^1\times {\mathrm{2113}}^1$

素因数の和:2230

約数の個数: 36

約数和(自身を含む): 47708752

約数和(自身を除く): 25944852

約数列:

[1, 2, 4, 5, 10, 20, 25, 50, 100, 103, 206, 412, 515, 1030, 2060, 2113, 2575, 4226, 5150, 8452, 10300, 10565, 21130, 42260, 52825, 105650, 211300, 217639, 435278, 870556, 1088195, 2176390, 4352780, 5440975, 10881950, 21763900]

約数ペア:

[(1, 21763900), (2, 10881950), (4, 5440975), (5, 4352780), (10, 2176390), (20, 1088195), (25, 870556), (50, 435278), (100, 217639), (103, 211300), (206, 105650), (412, 52825), (515, 42260), (1030, 21130), (2060, 10565), (2113, 10300), (2575, 8452), (4226, 5150)]