231421561

素因数分解:

$7^2\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{257}}^1$

素因数の和:358

約数の個数: 48

約数和(自身を含む): 304943616

約数和(自身を除く): 73522055

約数列:

[1, 7, 17, 23, 47, 49, 119, 161, 257, 329, 391, 799, 833, 1081, 1127, 1799, 2303, 2737, 4369, 5593, 5911, 7567, 12079, 12593, 18377, 19159, 30583, 39151, 41377, 52969, 84553, 100487, 128639, 205343, 214081, 277817, 289639, 591871, 703409, 900473, 1437401, 1944719, 4722889, 4923863, 10061807, 13613033, 33060223, 231421561]

約数ペア:

[(1, 231421561), (7, 33060223), (17, 13613033), (23, 10061807), (47, 4923863), (49, 4722889), (119, 1944719), (161, 1437401), (257, 900473), (329, 703409), (391, 591871), (799, 289639), (833, 277817), (1081, 214081), (1127, 205343), (1799, 128639), (2303, 100487), (2737, 84553), (4369, 52969), (5593, 41377), (5911, 39151), (7567, 30583), (12079, 19159), (12593, 18377)]