21217834

素因数分解:

$2^1\times {\mathrm{11}}^2\times {\mathrm{43}}^1\times {\mathrm{2039}}^1$

素因数の和:2106

約数の個数: 24

約数和(自身を含む): 35814240

約数和(自身を除く): 14596406

約数列:

[1, 2, 11, 22, 43, 86, 121, 242, 473, 946, 2039, 4078, 5203, 10406, 22429, 44858, 87677, 175354, 246719, 493438, 964447, 1928894, 10608917, 21217834]

約数ペア:

[(1, 21217834), (2, 10608917), (11, 1928894), (22, 964447), (43, 493438), (86, 246719), (121, 175354), (242, 87677), (473, 44858), (946, 22429), (2039, 10406), (4078, 5203)]