18493904

素因数分解:

$2^4\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{59}}^1\times {\mathrm{137}}^1$

素因数の和:228

約数の個数: 80

約数和(自身を含む): 43122240

約数和(自身を除く): 24628336

約数列:

[1, 2, 4, 8, 11, 13, 16, 22, 26, 44, 52, 59, 88, 104, 118, 137, 143, 176, 208, 236, 274, 286, 472, 548, 572, 649, 767, 944, 1096, 1144, 1298, 1507, 1534, 1781, 2192, 2288, 2596, 3014, 3068, 3562, 5192, 6028, 6136, 7124, 8083, 8437, 10384, 12056, 12272, 14248, 16166, 16874, 19591, 24112, 28496, 32332, 33748, 39182, 64664, 67496, 78364, 88913, 105079, 129328, 134992, 156728, 177826, 210158, 313456, 355652, 420316, 711304, 840632, 1155869, 1422608, 1681264, 2311738, 4623476, 9246952, 18493904]

約数ペア:

[(1, 18493904), (2, 9246952), (4, 4623476), (8, 2311738), (11, 1681264), (13, 1422608), (16, 1155869), (22, 840632), (26, 711304), (44, 420316), (52, 355652), (59, 313456), (88, 210158), (104, 177826), (118, 156728), (137, 134992), (143, 129328), (176, 105079), (208, 88913), (236, 78364), (274, 67496), (286, 64664), (472, 39182), (548, 33748), (572, 32332), (649, 28496), (767, 24112), (944, 19591), (1096, 16874), (1144, 16166), (1298, 14248), (1507, 12272), (1534, 12056), (1781, 10384), (2192, 8437), (2288, 8083), (2596, 7124), (3014, 6136), (3068, 6028), (3562, 5192)]