18619601

素因数分解:

$7^1\times {\mathrm{11}}^2\times {\mathrm{13}}^1\times {\mathrm{19}}^1\times {\mathrm{89}}^1$

素因数の和:150

約数の個数: 48

約数和(自身を含む): 26812800

約数和(自身を除く): 8193199

約数列:

[1, 7, 11, 13, 19, 77, 89, 91, 121, 133, 143, 209, 247, 623, 847, 979, 1001, 1157, 1463, 1573, 1691, 1729, 2299, 2717, 6853, 8099, 10769, 11011, 11837, 12727, 16093, 18601, 19019, 21983, 29887, 75383, 89089, 130207, 139997, 153881, 204611, 209209, 241813, 979979, 1432277, 1692691, 2659943, 18619601]

約数ペア:

[(1, 18619601), (7, 2659943), (11, 1692691), (13, 1432277), (19, 979979), (77, 241813), (89, 209209), (91, 204611), (121, 153881), (133, 139997), (143, 130207), (209, 89089), (247, 75383), (623, 29887), (847, 21983), (979, 19019), (1001, 18601), (1157, 16093), (1463, 12727), (1573, 11837), (1691, 11011), (1729, 10769), (2299, 8099), (2717, 6853)]