21489510

素因数分解:

$2^1\times 3^1\times 5^1\times 7^1\times {\mathrm{31}}^1\times {\mathrm{3301}}^1$

素因数の和:3349

約数の個数: 64

約数和(自身を含む): 60862464

約数和(自身を除く): 39372954

約数列:

[1, 2, 3, 5, 6, 7, 10, 14, 15, 21, 30, 31, 35, 42, 62, 70, 93, 105, 155, 186, 210, 217, 310, 434, 465, 651, 930, 1085, 1302, 2170, 3255, 3301, 6510, 6602, 9903, 16505, 19806, 23107, 33010, 46214, 49515, 69321, 99030, 102331, 115535, 138642, 204662, 231070, 306993, 346605, 511655, 613986, 693210, 716317, 1023310, 1432634, 1534965, 2148951, 3069930, 3581585, 4297902, 7163170, 10744755, 21489510]

約数ペア:

[(1, 21489510), (2, 10744755), (3, 7163170), (5, 4297902), (6, 3581585), (7, 3069930), (10, 2148951), (14, 1534965), (15, 1432634), (21, 1023310), (30, 716317), (31, 693210), (35, 613986), (42, 511655), (62, 346605), (70, 306993), (93, 231070), (105, 204662), (155, 138642), (186, 115535), (210, 102331), (217, 99030), (310, 69321), (434, 49515), (465, 46214), (651, 33010), (930, 23107), (1085, 19806), (1302, 16505), (2170, 9903), (3255, 6602), (3301, 6510)]