21663800

素因数分解:

$2^3\times 5^2\times {\mathrm{19}}^1\times {\mathrm{5701}}^1$

素因数の和:5736

約数の個数: 48

約数和(自身を含む): 53028600

約数和(自身を除く): 31364800

約数列:

[1, 2, 4, 5, 8, 10, 19, 20, 25, 38, 40, 50, 76, 95, 100, 152, 190, 200, 380, 475, 760, 950, 1900, 3800, 5701, 11402, 22804, 28505, 45608, 57010, 108319, 114020, 142525, 216638, 228040, 285050, 433276, 541595, 570100, 866552, 1083190, 1140200, 2166380, 2707975, 4332760, 5415950, 10831900, 21663800]

約数ペア:

[(1, 21663800), (2, 10831900), (4, 5415950), (5, 4332760), (8, 2707975), (10, 2166380), (19, 1140200), (20, 1083190), (25, 866552), (38, 570100), (40, 541595), (50, 433276), (76, 285050), (95, 228040), (100, 216638), (152, 142525), (190, 114020), (200, 108319), (380, 57010), (475, 45608), (760, 28505), (950, 22804), (1900, 11402), (3800, 5701)]