19386783

素因数分解:

$3^5\times {\mathrm{13}}^1\times {\mathrm{17}}^1\times {\mathrm{19}}^2$

素因数の和:83

約数の個数: 72

約数和(自身を含む): 34948368

約数和(自身を除く): 15561585

約数列:

[1, 3, 9, 13, 17, 19, 27, 39, 51, 57, 81, 117, 153, 171, 221, 243, 247, 323, 351, 361, 459, 513, 663, 741, 969, 1053, 1083, 1377, 1539, 1989, 2223, 2907, 3159, 3249, 4131, 4199, 4617, 4693, 5967, 6137, 6669, 8721, 9747, 12597, 14079, 17901, 18411, 20007, 26163, 29241, 37791, 42237, 53703, 55233, 60021, 78489, 79781, 87723, 113373, 126711, 165699, 239343, 340119, 380133, 497097, 718029, 1020357, 1140399, 1491291, 2154087, 6462261, 19386783]

約数ペア:

[(1, 19386783), (3, 6462261), (9, 2154087), (13, 1491291), (17, 1140399), (19, 1020357), (27, 718029), (39, 497097), (51, 380133), (57, 340119), (81, 239343), (117, 165699), (153, 126711), (171, 113373), (221, 87723), (243, 79781), (247, 78489), (323, 60021), (351, 55233), (361, 53703), (459, 42237), (513, 37791), (663, 29241), (741, 26163), (969, 20007), (1053, 18411), (1083, 17901), (1377, 14079), (1539, 12597), (1989, 9747), (2223, 8721), (2907, 6669), (3159, 6137), (3249, 5967), (4131, 4693), (4199, 4617)]