21000363972

素因数分解:

$2^2\times 3^1\times 7^1\times {\mathrm{3181}}^1\times {\mathrm{78593}}^1$

素因数の和:81788

約数の個数: 48

約数和(自身を含む): 56019288192

約数和(自身を除く): 35018924220

約数列:

[1, 2, 3, 4, 6, 7, 12, 14, 21, 28, 42, 84, 3181, 6362, 9543, 12724, 19086, 22267, 38172, 44534, 66801, 78593, 89068, 133602, 157186, 235779, 267204, 314372, 471558, 550151, 943116, 1100302, 1650453, 2200604, 3300906, 6601812, 250004333, 500008666, 750012999, 1000017332, 1500025998, 1750030331, 3000051996, 3500060662, 5250090993, 7000121324, 10500181986, 21000363972]

約数ペア:

[(1, 21000363972), (2, 10500181986), (3, 7000121324), (4, 5250090993), (6, 3500060662), (7, 3000051996), (12, 1750030331), (14, 1500025998), (21, 1000017332), (28, 750012999), (42, 500008666), (84, 250004333), (3181, 6601812), (6362, 3300906), (9543, 2200604), (12724, 1650453), (19086, 1100302), (22267, 943116), (38172, 550151), (44534, 471558), (66801, 314372), (78593, 267204), (89068, 235779), (133602, 157186)]