21810460

素因数分解:

$2^2\times 5^1\times 7^1\times {\mathrm{43}}^1\times {\mathrm{3623}}^1$

素因数の和:3682

約数の個数: 48

約数和(自身を含む): 53577216

約数和(自身を除く): 31766756

約数列:

[1, 2, 4, 5, 7, 10, 14, 20, 28, 35, 43, 70, 86, 140, 172, 215, 301, 430, 602, 860, 1204, 1505, 3010, 3623, 6020, 7246, 14492, 18115, 25361, 36230, 50722, 72460, 101444, 126805, 155789, 253610, 311578, 507220, 623156, 778945, 1090523, 1557890, 2181046, 3115780, 4362092, 5452615, 10905230, 21810460]

約数ペア:

[(1, 21810460), (2, 10905230), (4, 5452615), (5, 4362092), (7, 3115780), (10, 2181046), (14, 1557890), (20, 1090523), (28, 778945), (35, 623156), (43, 507220), (70, 311578), (86, 253610), (140, 155789), (172, 126805), (215, 101444), (301, 72460), (430, 50722), (602, 36230), (860, 25361), (1204, 18115), (1505, 14492), (3010, 7246), (3623, 6020)]