18695138

素因数分解:

$2^1\times 7^1\times {\mathrm{11}}^1\times {\mathrm{17}}^1\times {\mathrm{37}}^1\times {\mathrm{193}}^1$

素因数の和:267

約数の個数: 64

約数和(自身を含む): 38216448

約数和(自身を除く): 19521310

約数列:

[1, 2, 7, 11, 14, 17, 22, 34, 37, 74, 77, 119, 154, 187, 193, 238, 259, 374, 386, 407, 518, 629, 814, 1258, 1309, 1351, 2123, 2618, 2702, 2849, 3281, 4246, 4403, 5698, 6562, 6919, 7141, 8806, 13838, 14282, 14861, 22967, 29722, 36091, 45934, 48433, 49987, 72182, 78551, 96866, 99974, 121397, 157102, 242794, 252637, 505274, 549857, 849779, 1099714, 1335367, 1699558, 2670734, 9347569, 18695138]

約数ペア:

[(1, 18695138), (2, 9347569), (7, 2670734), (11, 1699558), (14, 1335367), (17, 1099714), (22, 849779), (34, 549857), (37, 505274), (74, 252637), (77, 242794), (119, 157102), (154, 121397), (187, 99974), (193, 96866), (238, 78551), (259, 72182), (374, 49987), (386, 48433), (407, 45934), (518, 36091), (629, 29722), (814, 22967), (1258, 14861), (1309, 14282), (1351, 13838), (2123, 8806), (2618, 7141), (2702, 6919), (2849, 6562), (3281, 5698), (4246, 4403)]