21392144

素因数分解:

$2^4\times {\mathrm{47}}^1\times {\mathrm{28447}}^1$

素因数の和:28502

約数の個数: 20

約数和(自身を含む): 42330624

約数和(自身を除く): 20938480

約数列:

[1, 2, 4, 8, 16, 47, 94, 188, 376, 752, 28447, 56894, 113788, 227576, 455152, 1337009, 2674018, 5348036, 10696072, 21392144]

約数ペア:

[(1, 21392144), (2, 10696072), (4, 5348036), (8, 2674018), (16, 1337009), (47, 455152), (94, 227576), (188, 113788), (376, 56894), (752, 28447)]