20971845

素因数分解:

$3^3\times 5^1\times {\mathrm{59}}^1\times {\mathrm{2633}}^1$

素因数の和:2706

約数の個数: 32

約数和(自身を含む): 37929600

約数和(自身を除く): 16957755

約数列:

[1, 3, 5, 9, 15, 27, 45, 59, 135, 177, 295, 531, 885, 1593, 2633, 2655, 7899, 7965, 13165, 23697, 39495, 71091, 118485, 155347, 355455, 466041, 776735, 1398123, 2330205, 4194369, 6990615, 20971845]

約数ペア:

[(1, 20971845), (3, 6990615), (5, 4194369), (9, 2330205), (15, 1398123), (27, 776735), (45, 466041), (59, 355455), (135, 155347), (177, 118485), (295, 71091), (531, 39495), (885, 23697), (1593, 13165), (2633, 7965), (2655, 7899)]