31211964

素因数分解:

$2^2\times 3^2\times 7^1\times {\mathrm{211}}^1\times {\mathrm{587}}^1$

素因数の和:815

約数の個数: 72

約数和(自身を含む): 90749568

約数和(自身を除く): 59537604

約数列:

[1, 2, 3, 4, 6, 7, 9, 12, 14, 18, 21, 28, 36, 42, 63, 84, 126, 211, 252, 422, 587, 633, 844, 1174, 1266, 1477, 1761, 1899, 2348, 2532, 2954, 3522, 3798, 4109, 4431, 5283, 5908, 7044, 7596, 8218, 8862, 10566, 12327, 13293, 16436, 17724, 21132, 24654, 26586, 36981, 49308, 53172, 73962, 123857, 147924, 247714, 371571, 495428, 743142, 866999, 1114713, 1486284, 1733998, 2229426, 2600997, 3467996, 4458852, 5201994, 7802991, 10403988, 15605982, 31211964]

約数ペア:

[(1, 31211964), (2, 15605982), (3, 10403988), (4, 7802991), (6, 5201994), (7, 4458852), (9, 3467996), (12, 2600997), (14, 2229426), (18, 1733998), (21, 1486284), (28, 1114713), (36, 866999), (42, 743142), (63, 495428), (84, 371571), (126, 247714), (211, 147924), (252, 123857), (422, 73962), (587, 53172), (633, 49308), (844, 36981), (1174, 26586), (1266, 24654), (1477, 21132), (1761, 17724), (1899, 16436), (2348, 13293), (2532, 12327), (2954, 10566), (3522, 8862), (3798, 8218), (4109, 7596), (4431, 7044), (5283, 5908)]