21044115

素因数分解:

$3^2\times 5^1\times {\mathrm{19}}^1\times {\mathrm{151}}^1\times {\mathrm{163}}^1$

素因数の和:344

約数の個数: 48

約数和(自身を含む): 38887680

約数和(自身を除く): 17843565

約数列:

[1, 3, 5, 9, 15, 19, 45, 57, 95, 151, 163, 171, 285, 453, 489, 755, 815, 855, 1359, 1467, 2265, 2445, 2869, 3097, 6795, 7335, 8607, 9291, 14345, 15485, 24613, 25821, 27873, 43035, 46455, 73839, 123065, 129105, 139365, 221517, 369195, 467647, 1107585, 1402941, 2338235, 4208823, 7014705, 21044115]

約数ペア:

[(1, 21044115), (3, 7014705), (5, 4208823), (9, 2338235), (15, 1402941), (19, 1107585), (45, 467647), (57, 369195), (95, 221517), (151, 139365), (163, 129105), (171, 123065), (285, 73839), (453, 46455), (489, 43035), (755, 27873), (815, 25821), (855, 24613), (1359, 15485), (1467, 14345), (2265, 9291), (2445, 8607), (2869, 7335), (3097, 6795)]