19937916

素因数分解:

$2^2\times 3^2\times {\mathrm{19}}^1\times {\mathrm{103}}^1\times {\mathrm{283}}^1$

素因数の和:415

約数の個数: 72

約数和(自身を含む): 53755520

約数和(自身を除く): 33817604

約数列:

[1, 2, 3, 4, 6, 9, 12, 18, 19, 36, 38, 57, 76, 103, 114, 171, 206, 228, 283, 309, 342, 412, 566, 618, 684, 849, 927, 1132, 1236, 1698, 1854, 1957, 2547, 3396, 3708, 3914, 5094, 5377, 5871, 7828, 10188, 10754, 11742, 16131, 17613, 21508, 23484, 29149, 32262, 35226, 48393, 58298, 64524, 70452, 87447, 96786, 116596, 174894, 193572, 262341, 349788, 524682, 553831, 1049364, 1107662, 1661493, 2215324, 3322986, 4984479, 6645972, 9968958, 19937916]

約数ペア:

[(1, 19937916), (2, 9968958), (3, 6645972), (4, 4984479), (6, 3322986), (9, 2215324), (12, 1661493), (18, 1107662), (19, 1049364), (36, 553831), (38, 524682), (57, 349788), (76, 262341), (103, 193572), (114, 174894), (171, 116596), (206, 96786), (228, 87447), (283, 70452), (309, 64524), (342, 58298), (412, 48393), (566, 35226), (618, 32262), (684, 29149), (849, 23484), (927, 21508), (1132, 17613), (1236, 16131), (1698, 11742), (1854, 10754), (1957, 10188), (2547, 7828), (3396, 5871), (3708, 5377), (3914, 5094)]