19041904

素因数分解:

$2^4\times 7^1\times {\mathrm{17}}^1\times {\mathrm{73}}^1\times {\mathrm{137}}^1$

素因数の和:242

約数の個数: 80

約数和(自身を含む): 45586368

約数和(自身を除く): 26544464

約数列:

[1, 2, 4, 7, 8, 14, 16, 17, 28, 34, 56, 68, 73, 112, 119, 136, 137, 146, 238, 272, 274, 292, 476, 511, 548, 584, 952, 959, 1022, 1096, 1168, 1241, 1904, 1918, 2044, 2192, 2329, 2482, 3836, 4088, 4658, 4964, 7672, 8176, 8687, 9316, 9928, 10001, 15344, 16303, 17374, 18632, 19856, 20002, 32606, 34748, 37264, 40004, 65212, 69496, 70007, 80008, 130424, 138992, 140014, 160016, 170017, 260848, 280028, 340034, 560056, 680068, 1120112, 1190119, 1360136, 2380238, 2720272, 4760476, 9520952, 19041904]

約数ペア:

[(1, 19041904), (2, 9520952), (4, 4760476), (7, 2720272), (8, 2380238), (14, 1360136), (16, 1190119), (17, 1120112), (28, 680068), (34, 560056), (56, 340034), (68, 280028), (73, 260848), (112, 170017), (119, 160016), (136, 140014), (137, 138992), (146, 130424), (238, 80008), (272, 70007), (274, 69496), (292, 65212), (476, 40004), (511, 37264), (548, 34748), (584, 32606), (952, 20002), (959, 19856), (1022, 18632), (1096, 17374), (1168, 16303), (1241, 15344), (1904, 10001), (1918, 9928), (2044, 9316), (2192, 8687), (2329, 8176), (2482, 7672), (3836, 4964), (4088, 4658)]