21161340

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117563}}^1$

素因数の和:117578

約数の個数: 36

約数和(自身を含む): 64189944

約数和(自身を除く): 43028604

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117563, 235126, 352689, 470252, 587815, 705378, 1058067, 1175630, 1410756, 1763445, 2116134, 2351260, 3526890, 4232268, 5290335, 7053780, 10580670, 21161340]

約数ペア:

[(1, 21161340), (2, 10580670), (3, 7053780), (4, 5290335), (5, 4232268), (6, 3526890), (9, 2351260), (10, 2116134), (12, 1763445), (15, 1410756), (18, 1175630), (20, 1058067), (30, 705378), (36, 587815), (45, 470252), (60, 352689), (90, 235126), (180, 117563)]