257579427

素因数分解:

$3^1\times 7^2\times {\mathrm{17}}^1\times {\mathrm{59}}^1\times {\mathrm{1747}}^1$

素因数の和:1840

約数の個数: 48

約数和(自身を含む): 430427520

約数和(自身を除く): 172848093

約数列:

[1, 3, 7, 17, 21, 49, 51, 59, 119, 147, 177, 357, 413, 833, 1003, 1239, 1747, 2499, 2891, 3009, 5241, 7021, 8673, 12229, 21063, 29699, 36687, 49147, 85603, 89097, 103073, 147441, 207893, 256809, 309219, 623679, 721511, 1455251, 1752241, 2164533, 4365753, 5050577, 5256723, 12265687, 15151731, 36797061, 85859809, 257579427]

約数ペア:

[(1, 257579427), (3, 85859809), (7, 36797061), (17, 15151731), (21, 12265687), (49, 5256723), (51, 5050577), (59, 4365753), (119, 2164533), (147, 1752241), (177, 1455251), (357, 721511), (413, 623679), (833, 309219), (1003, 256809), (1239, 207893), (1747, 147441), (2499, 103073), (2891, 89097), (3009, 85603), (5241, 49147), (7021, 36687), (8673, 29699), (12229, 21063)]