2123235639

素因数分解:

$3^3\times 7^1\times {\mathrm{23}}^1\times {\mathrm{37}}^1\times {\mathrm{43}}^1\times {\mathrm{307}}^1$

素因数の和:426

約数の個数: 128

約数和(自身を含む): 3955015680

約数和(自身を除く): 1831780041

約数列:

[1, 3, 7, 9, 21, 23, 27, 37, 43, 63, 69, 111, 129, 161, 189, 207, 259, 301, 307, 333, 387, 483, 621, 777, 851, 903, 921, 989, 999, 1161, 1449, 1591, 2149, 2331, 2553, 2709, 2763, 2967, 4347, 4773, 5957, 6447, 6923, 6993, 7061, 7659, 8127, 8289, 8901, 11137, 11359, 13201, 14319, 17871, 19341, 20769, 21183, 22977, 26703, 33411, 34077, 36593, 39603, 42957, 49427, 53613, 58023, 62307, 63549, 79513, 92407, 100233, 102231, 109779, 118809, 148281, 160839, 186921, 190647, 238539, 256151, 261257, 277221, 300699, 303623, 306693, 329337, 356427, 444843, 488437, 715617, 768453, 783771, 831663, 910869, 988011, 1334529, 1465311, 1828799, 2125361, 2146851, 2305359, 2351313, 2494989, 2732607, 3419059, 4395933, 5486397, 6376083, 6916077, 7053939, 8197821, 10257177, 11234051, 13187799, 16459191, 19128249, 30771531, 33702153, 49377573, 57384747, 78638357, 92314593, 101106459, 235915071, 303319377, 707745213, 2123235639]

約数ペア:

[(1, 2123235639), (3, 707745213), (7, 303319377), (9, 235915071), (21, 101106459), (23, 92314593), (27, 78638357), (37, 57384747), (43, 49377573), (63, 33702153), (69, 30771531), (111, 19128249), (129, 16459191), (161, 13187799), (189, 11234051), (207, 10257177), (259, 8197821), (301, 7053939), (307, 6916077), (333, 6376083), (387, 5486397), (483, 4395933), (621, 3419059), (777, 2732607), (851, 2494989), (903, 2351313), (921, 2305359), (989, 2146851), (999, 2125361), (1161, 1828799), (1449, 1465311), (1591, 1334529), (2149, 988011), (2331, 910869), (2553, 831663), (2709, 783771), (2763, 768453), (2967, 715617), (4347, 488437), (4773, 444843), (5957, 356427), (6447, 329337), (6923, 306693), (6993, 303623), (7061, 300699), (7659, 277221), (8127, 261257), (8289, 256151), (8901, 238539), (11137, 190647), (11359, 186921), (13201, 160839), (14319, 148281), (17871, 118809), (19341, 109779), (20769, 102231), (21183, 100233), (22977, 92407), (26703, 79513), (33411, 63549), (34077, 62307), (36593, 58023), (39603, 53613), (42957, 49427)]