21049984

素因数分解:

$2^7\times {\mathrm{47}}^1\times {\mathrm{3499}}^1$

素因数の和:3560

約数の個数: 32

約数和(自身を含む): 42840000

約数和(自身を除く): 21790016

約数列:

[1, 2, 4, 8, 16, 32, 47, 64, 94, 128, 188, 376, 752, 1504, 3008, 3499, 6016, 6998, 13996, 27992, 55984, 111968, 164453, 223936, 328906, 447872, 657812, 1315624, 2631248, 5262496, 10524992, 21049984]

約数ペア:

[(1, 21049984), (2, 10524992), (4, 5262496), (8, 2631248), (16, 1315624), (32, 657812), (47, 447872), (64, 328906), (94, 223936), (128, 164453), (188, 111968), (376, 55984), (752, 27992), (1504, 13996), (3008, 6998), (3499, 6016)]