19983516

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{19}}^2\times {\mathrm{659}}^1$

素因数の和:711

約数の個数: 72

約数和(自身を含む): 56327040

約数和(自身を除く): 36343524

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 19, 21, 28, 38, 42, 57, 76, 84, 114, 133, 228, 266, 361, 399, 532, 659, 722, 798, 1083, 1318, 1444, 1596, 1977, 2166, 2527, 2636, 3954, 4332, 4613, 5054, 7581, 7908, 9226, 10108, 12521, 13839, 15162, 18452, 25042, 27678, 30324, 37563, 50084, 55356, 75126, 87647, 150252, 175294, 237899, 262941, 350588, 475798, 525882, 713697, 951596, 1051764, 1427394, 1665293, 2854788, 3330586, 4995879, 6661172, 9991758, 19983516]

約数ペア:

[(1, 19983516), (2, 9991758), (3, 6661172), (4, 4995879), (6, 3330586), (7, 2854788), (12, 1665293), (14, 1427394), (19, 1051764), (21, 951596), (28, 713697), (38, 525882), (42, 475798), (57, 350588), (76, 262941), (84, 237899), (114, 175294), (133, 150252), (228, 87647), (266, 75126), (361, 55356), (399, 50084), (532, 37563), (659, 30324), (722, 27678), (798, 25042), (1083, 18452), (1318, 15162), (1444, 13839), (1596, 12521), (1977, 10108), (2166, 9226), (2527, 7908), (2636, 7581), (3954, 5054), (4332, 4613)]