21245408

素因数分解:

$2^5\times {\mathrm{109}}^1\times {\mathrm{6091}}^1$

素因数の和:6210

約数の個数: 24

約数和(自身を含む): 42217560

約数和(自身を除く): 20972152

約数列:

[1, 2, 4, 8, 16, 32, 109, 218, 436, 872, 1744, 3488, 6091, 12182, 24364, 48728, 97456, 194912, 663919, 1327838, 2655676, 5311352, 10622704, 21245408]

約数ペア:

[(1, 21245408), (2, 10622704), (4, 5311352), (8, 2655676), (16, 1327838), (32, 663919), (109, 194912), (218, 97456), (436, 48728), (872, 24364), (1744, 12182), (3488, 6091)]