2100099220

素因数分解:

$2^2\times 5^1\times {\mathrm{431}}^1\times {\mathrm{243631}}^1$

素因数の和:244071

約数の個数: 24

約数和(自身を含む): 4420459008

約数和(自身を除く): 2320359788

約数列:

[1, 2, 4, 5, 10, 20, 431, 862, 1724, 2155, 4310, 8620, 243631, 487262, 974524, 1218155, 2436310, 4872620, 105004961, 210009922, 420019844, 525024805, 1050049610, 2100099220]

約数ペア:

[(1, 2100099220), (2, 1050049610), (4, 525024805), (5, 420019844), (10, 210009922), (20, 105004961), (431, 4872620), (862, 2436310), (1724, 1218155), (2155, 974524), (4310, 487262), (8620, 243631)]