19494412

素因数分解:

$2^2\times 7^1\times {\mathrm{31}}^1\times {\mathrm{37}}^1\times {\mathrm{607}}^1$

素因数の和:686

約数の個数: 48

約数和(自身を含む): 41402368

約数和(自身を除く): 21907956

約数列:

[1, 2, 4, 7, 14, 28, 31, 37, 62, 74, 124, 148, 217, 259, 434, 518, 607, 868, 1036, 1147, 1214, 2294, 2428, 4249, 4588, 8029, 8498, 16058, 16996, 18817, 22459, 32116, 37634, 44918, 75268, 89836, 131719, 157213, 263438, 314426, 526876, 628852, 696229, 1392458, 2784916, 4873603, 9747206, 19494412]

約数ペア:

[(1, 19494412), (2, 9747206), (4, 4873603), (7, 2784916), (14, 1392458), (28, 696229), (31, 628852), (37, 526876), (62, 314426), (74, 263438), (124, 157213), (148, 131719), (217, 89836), (259, 75268), (434, 44918), (518, 37634), (607, 32116), (868, 22459), (1036, 18817), (1147, 16996), (1214, 16058), (2294, 8498), (2428, 8029), (4249, 4588)]