21540090

素因数分解:

$2^1\times 3^1\times 5^1\times {\mathrm{11}}^1\times {\mathrm{13}}^1\times {\mathrm{5021}}^1$

素因数の和:5055

約数の個数: 64

約数和(自身を含む): 60746112

約数和(自身を除く): 39206022

約数列:

[1, 2, 3, 5, 6, 10, 11, 13, 15, 22, 26, 30, 33, 39, 55, 65, 66, 78, 110, 130, 143, 165, 195, 286, 330, 390, 429, 715, 858, 1430, 2145, 4290, 5021, 10042, 15063, 25105, 30126, 50210, 55231, 65273, 75315, 110462, 130546, 150630, 165693, 195819, 276155, 326365, 331386, 391638, 552310, 652730, 718003, 828465, 979095, 1436006, 1656930, 1958190, 2154009, 3590015, 4308018, 7180030, 10770045, 21540090]

約数ペア:

[(1, 21540090), (2, 10770045), (3, 7180030), (5, 4308018), (6, 3590015), (10, 2154009), (11, 1958190), (13, 1656930), (15, 1436006), (22, 979095), (26, 828465), (30, 718003), (33, 652730), (39, 552310), (55, 391638), (65, 331386), (66, 326365), (78, 276155), (110, 195819), (130, 165693), (143, 150630), (165, 130546), (195, 110462), (286, 75315), (330, 65273), (390, 55231), (429, 50210), (715, 30126), (858, 25105), (1430, 15063), (2145, 10042), (4290, 5021)]