21000434672

素因数分解:

$2^4\times 7^1\times {\mathrm{17509}}^1\times {\mathrm{10709}}^1$

素因数の和:28233

約数の個数: 40

約数和(自身を含む): 46507960800

約数和(自身を除く): 25507526128

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 56, 112, 10709, 17509, 21418, 35018, 42836, 70036, 74963, 85672, 122563, 140072, 149926, 171344, 245126, 280144, 299852, 490252, 599704, 980504, 1199408, 1961008, 187503881, 375007762, 750015524, 1312527167, 1500031048, 2625054334, 3000062096, 5250108668, 10500217336, 21000434672]

約数ペア:

[(1, 21000434672), (2, 10500217336), (4, 5250108668), (7, 3000062096), (8, 2625054334), (14, 1500031048), (16, 1312527167), (28, 750015524), (56, 375007762), (112, 187503881), (10709, 1961008), (17509, 1199408), (21418, 980504), (35018, 599704), (42836, 490252), (70036, 299852), (74963, 280144), (85672, 245126), (122563, 171344), (140072, 149926)]