19401172

素因数分解:

$2^2\times 7^1\times {\mathrm{37}}^1\times {\mathrm{61}}^1\times {\mathrm{307}}^1$

素因数の和:416

約数の個数: 48

約数和(自身を含む): 40636288

約数和(自身を除く): 21235116

約数列:

[1, 2, 4, 7, 14, 28, 37, 61, 74, 122, 148, 244, 259, 307, 427, 518, 614, 854, 1036, 1228, 1708, 2149, 2257, 4298, 4514, 8596, 9028, 11359, 15799, 18727, 22718, 31598, 37454, 45436, 63196, 74908, 79513, 131089, 159026, 262178, 318052, 524356, 692899, 1385798, 2771596, 4850293, 9700586, 19401172]

約数ペア:

[(1, 19401172), (2, 9700586), (4, 4850293), (7, 2771596), (14, 1385798), (28, 692899), (37, 524356), (61, 318052), (74, 262178), (122, 159026), (148, 131089), (244, 79513), (259, 74908), (307, 63196), (427, 45436), (518, 37454), (614, 31598), (854, 22718), (1036, 18727), (1228, 15799), (1708, 11359), (2149, 9028), (2257, 8596), (4298, 4514)]