20719218

素因数分解:

$2^1\times 3^1\times {\mathrm{13}}^1\times {\mathrm{491}}^1\times {\mathrm{541}}^1$

素因数の和:1050

約数の個数: 32

約数和(自身を含む): 44799552

約数和(自身を除く): 24080334

約数列:

[1, 2, 3, 6, 13, 26, 39, 78, 491, 541, 982, 1082, 1473, 1623, 2946, 3246, 6383, 7033, 12766, 14066, 19149, 21099, 38298, 42198, 265631, 531262, 796893, 1593786, 3453203, 6906406, 10359609, 20719218]

約数ペア:

[(1, 20719218), (2, 10359609), (3, 6906406), (6, 3453203), (13, 1593786), (26, 796893), (39, 531262), (78, 265631), (491, 42198), (541, 38298), (982, 21099), (1082, 19149), (1473, 14066), (1623, 12766), (2946, 7033), (3246, 6383)]