21242070

素因数分解:

$2^1\times 3^2\times 5^1\times {\mathrm{37}}^1\times {\mathrm{6379}}^1$

素因数の和:6429

約数の個数: 48

約数和(自身を含む): 56730960

約数和(自身を除く): 35488890

約数列:

[1, 2, 3, 5, 6, 9, 10, 15, 18, 30, 37, 45, 74, 90, 111, 185, 222, 333, 370, 555, 666, 1110, 1665, 3330, 6379, 12758, 19137, 31895, 38274, 57411, 63790, 95685, 114822, 191370, 236023, 287055, 472046, 574110, 708069, 1180115, 1416138, 2124207, 2360230, 3540345, 4248414, 7080690, 10621035, 21242070]

約数ペア:

[(1, 21242070), (2, 10621035), (3, 7080690), (5, 4248414), (6, 3540345), (9, 2360230), (10, 2124207), (15, 1416138), (18, 1180115), (30, 708069), (37, 574110), (45, 472046), (74, 287055), (90, 236023), (111, 191370), (185, 114822), (222, 95685), (333, 63790), (370, 57411), (555, 38274), (666, 31895), (1110, 19137), (1665, 12758), (3330, 6379)]