20687764

素因数分解:

$2^2\times {\mathrm{23}}^1\times {\mathrm{109}}^1\times {\mathrm{2063}}^1$

素因数の和:2199

約数の個数: 24

約数和(自身を含む): 38142720

約数和(自身を除く): 17454956

約数列:

[1, 2, 4, 23, 46, 92, 109, 218, 436, 2063, 2507, 4126, 5014, 8252, 10028, 47449, 94898, 189796, 224867, 449734, 899468, 5171941, 10343882, 20687764]

約数ペア:

[(1, 20687764), (2, 10343882), (4, 5171941), (23, 899468), (46, 449734), (92, 224867), (109, 189796), (218, 94898), (436, 47449), (2063, 10028), (2507, 8252), (4126, 5014)]