19409728

素因数分解:

$2^6\times {\mathrm{13}}^1\times {\mathrm{41}}^1\times {\mathrm{569}}^1$

素因数の和:635

約数の個数: 56

約数和(自身を含む): 42565320

約数和(自身を除く): 23155592

約数列:

[1, 2, 4, 8, 13, 16, 26, 32, 41, 52, 64, 82, 104, 164, 208, 328, 416, 533, 569, 656, 832, 1066, 1138, 1312, 2132, 2276, 2624, 4264, 4552, 7397, 8528, 9104, 14794, 17056, 18208, 23329, 29588, 34112, 36416, 46658, 59176, 93316, 118352, 186632, 236704, 303277, 373264, 473408, 606554, 746528, 1213108, 1493056, 2426216, 4852432, 9704864, 19409728]

約数ペア:

[(1, 19409728), (2, 9704864), (4, 4852432), (8, 2426216), (13, 1493056), (16, 1213108), (26, 746528), (32, 606554), (41, 473408), (52, 373264), (64, 303277), (82, 236704), (104, 186632), (164, 118352), (208, 93316), (328, 59176), (416, 46658), (533, 36416), (569, 34112), (656, 29588), (832, 23329), (1066, 18208), (1138, 17056), (1312, 14794), (2132, 9104), (2276, 8528), (2624, 7397), (4264, 4552)]