18780688

素因数分解:

$2^4\times {\mathrm{211}}^1\times {\mathrm{5563}}^1$

素因数の和:5782

約数の個数: 20

約数和(自身を含む): 36566608

約数和(自身を除く): 17785920

約数列:

[1, 2, 4, 8, 16, 211, 422, 844, 1688, 3376, 5563, 11126, 22252, 44504, 89008, 1173793, 2347586, 4695172, 9390344, 18780688]

約数ペア:

[(1, 18780688), (2, 9390344), (4, 4695172), (8, 2347586), (16, 1173793), (211, 89008), (422, 44504), (844, 22252), (1688, 11126), (3376, 5563)]