19875726

素因数分解:

$2^1\times 3^3\times {\mathrm{13}}^1\times {\mathrm{23}}^1\times {\mathrm{1231}}^1$

素因数の和:1278

約数の個数: 64

約数和(自身を含む): 49674240

約数和(自身を除く): 29798514

約数列:

[1, 2, 3, 6, 9, 13, 18, 23, 26, 27, 39, 46, 54, 69, 78, 117, 138, 207, 234, 299, 351, 414, 598, 621, 702, 897, 1231, 1242, 1794, 2462, 2691, 3693, 5382, 7386, 8073, 11079, 16003, 16146, 22158, 28313, 32006, 33237, 48009, 56626, 66474, 84939, 96018, 144027, 169878, 254817, 288054, 368069, 432081, 509634, 736138, 764451, 864162, 1104207, 1528902, 2208414, 3312621, 6625242, 9937863, 19875726]

約数ペア:

[(1, 19875726), (2, 9937863), (3, 6625242), (6, 3312621), (9, 2208414), (13, 1528902), (18, 1104207), (23, 864162), (26, 764451), (27, 736138), (39, 509634), (46, 432081), (54, 368069), (69, 288054), (78, 254817), (117, 169878), (138, 144027), (207, 96018), (234, 84939), (299, 66474), (351, 56626), (414, 48009), (598, 33237), (621, 32006), (702, 28313), (897, 22158), (1231, 16146), (1242, 16003), (1794, 11079), (2462, 8073), (2691, 7386), (3693, 5382)]