21854392

素因数分解:

$2^3\times 7^2\times {\mathrm{197}}^1\times {\mathrm{283}}^1$

素因数の和:500

約数の個数: 48

約数和(自身を含む): 48078360

約数和(自身を除く): 26223968

約数列:

[1, 2, 4, 7, 8, 14, 28, 49, 56, 98, 196, 197, 283, 392, 394, 566, 788, 1132, 1379, 1576, 1981, 2264, 2758, 3962, 5516, 7924, 9653, 11032, 13867, 15848, 19306, 27734, 38612, 55468, 55751, 77224, 110936, 111502, 223004, 390257, 446008, 780514, 1561028, 2731799, 3122056, 5463598, 10927196, 21854392]

約数ペア:

[(1, 21854392), (2, 10927196), (4, 5463598), (7, 3122056), (8, 2731799), (14, 1561028), (28, 780514), (49, 446008), (56, 390257), (98, 223004), (196, 111502), (197, 110936), (283, 77224), (392, 55751), (394, 55468), (566, 38612), (788, 27734), (1132, 19306), (1379, 15848), (1576, 13867), (1981, 11032), (2264, 9653), (2758, 7924), (3962, 5516)]