21456905168

素因数分解:

$2^4\times {\mathrm{107}}^1\times {\mathrm{1151}}^1\times {\mathrm{10889}}^1$

素因数の和:12155

約数の個数: 40

約数和(自身を含む): 42001597440

約数和(自身を除く): 20544692272

約数列:

[1, 2, 4, 8, 16, 107, 214, 428, 856, 1151, 1712, 2302, 4604, 9208, 10889, 18416, 21778, 43556, 87112, 123157, 174224, 246314, 492628, 985256, 1165123, 1970512, 2330246, 4660492, 9320984, 12533239, 18641968, 25066478, 50132956, 100265912, 200531824, 1341056573, 2682113146, 5364226292, 10728452584, 21456905168]

約数ペア:

[(1, 21456905168), (2, 10728452584), (4, 5364226292), (8, 2682113146), (16, 1341056573), (107, 200531824), (214, 100265912), (428, 50132956), (856, 25066478), (1151, 18641968), (1712, 12533239), (2302, 9320984), (4604, 4660492), (9208, 2330246), (10889, 1970512), (18416, 1165123), (21778, 985256), (43556, 492628), (87112, 246314), (123157, 174224)]