18816308

素因数分解:

$2^2\times 7^1\times {\mathrm{19}}^1\times {\mathrm{113}}^1\times {\mathrm{313}}^1$

素因数の和:456

約数の個数: 48

約数和(自身を含む): 40091520

約数和(自身を除く): 21275212

約数列:

[1, 2, 4, 7, 14, 19, 28, 38, 76, 113, 133, 226, 266, 313, 452, 532, 626, 791, 1252, 1582, 2147, 2191, 3164, 4294, 4382, 5947, 8588, 8764, 11894, 15029, 23788, 30058, 35369, 41629, 60116, 70738, 83258, 141476, 166516, 247583, 495166, 672011, 990332, 1344022, 2688044, 4704077, 9408154, 18816308]

約数ペア:

[(1, 18816308), (2, 9408154), (4, 4704077), (7, 2688044), (14, 1344022), (19, 990332), (28, 672011), (38, 495166), (76, 247583), (113, 166516), (133, 141476), (226, 83258), (266, 70738), (313, 60116), (452, 41629), (532, 35369), (626, 30058), (791, 23788), (1252, 15029), (1582, 11894), (2147, 8764), (2191, 8588), (3164, 5947), (4294, 4382)]