21252060

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{3191}}^1$

素因数の和:3243

約数の個数: 72

約数和(自身を含む): 66227616

約数和(自身を除く): 44975556

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 37, 45, 60, 74, 90, 111, 148, 180, 185, 222, 333, 370, 444, 555, 666, 740, 1110, 1332, 1665, 2220, 3191, 3330, 6382, 6660, 9573, 12764, 15955, 19146, 28719, 31910, 38292, 47865, 57438, 63820, 95730, 114876, 118067, 143595, 191460, 236134, 287190, 354201, 472268, 574380, 590335, 708402, 1062603, 1180670, 1416804, 1771005, 2125206, 2361340, 3542010, 4250412, 5313015, 7084020, 10626030, 21252060]

約数ペア:

[(1, 21252060), (2, 10626030), (3, 7084020), (4, 5313015), (5, 4250412), (6, 3542010), (9, 2361340), (10, 2125206), (12, 1771005), (15, 1416804), (18, 1180670), (20, 1062603), (30, 708402), (36, 590335), (37, 574380), (45, 472268), (60, 354201), (74, 287190), (90, 236134), (111, 191460), (148, 143595), (180, 118067), (185, 114876), (222, 95730), (333, 63820), (370, 57438), (444, 47865), (555, 38292), (666, 31910), (740, 28719), (1110, 19146), (1332, 15955), (1665, 12764), (2220, 9573), (3191, 6660), (3330, 6382)]