21382984

素因数分解:

$2^3\times 7^1\times {\mathrm{271}}^1\times {\mathrm{1409}}^1$

素因数の和:1693

約数の個数: 32

約数和(自身を含む): 46022400

約数和(自身を除く): 24639416

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 271, 542, 1084, 1409, 1897, 2168, 2818, 3794, 5636, 7588, 9863, 11272, 15176, 19726, 39452, 78904, 381839, 763678, 1527356, 2672873, 3054712, 5345746, 10691492, 21382984]

約数ペア:

[(1, 21382984), (2, 10691492), (4, 5345746), (7, 3054712), (8, 2672873), (14, 1527356), (28, 763678), (56, 381839), (271, 78904), (542, 39452), (1084, 19726), (1409, 15176), (1897, 11272), (2168, 9863), (2818, 7588), (3794, 5636)]