17920329

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{71}}^1\times {\mathrm{101}}^1$

素因数の和:206

約数の個数: 48

約数和(自身を含む): 30139776

約数和(自身を除く): 12219447

約数列:

[1, 3, 7, 17, 21, 49, 51, 71, 101, 119, 147, 213, 303, 357, 497, 707, 833, 1207, 1491, 1717, 2121, 2499, 3479, 3621, 4949, 5151, 7171, 8449, 10437, 12019, 14847, 21513, 25347, 36057, 50197, 59143, 84133, 121907, 150591, 177429, 252399, 351379, 365721, 853349, 1054137, 2560047, 5973443, 17920329]

約数ペア:

[(1, 17920329), (3, 5973443), (7, 2560047), (17, 1054137), (21, 853349), (49, 365721), (51, 351379), (71, 252399), (101, 177429), (119, 150591), (147, 121907), (213, 84133), (303, 59143), (357, 50197), (497, 36057), (707, 25347), (833, 21513), (1207, 14847), (1491, 12019), (1717, 10437), (2121, 8449), (2499, 7171), (3479, 5151), (3621, 4949)]