21072780

素因数分解:

$2^2\times 3^2\times 5^1\times {\mathrm{117071}}^1$

素因数の和:117086

約数の個数: 36

約数和(自身を含む): 63921312

約数和(自身を除く): 42848532

約数列:

[1, 2, 3, 4, 5, 6, 9, 10, 12, 15, 18, 20, 30, 36, 45, 60, 90, 180, 117071, 234142, 351213, 468284, 585355, 702426, 1053639, 1170710, 1404852, 1756065, 2107278, 2341420, 3512130, 4214556, 5268195, 7024260, 10536390, 21072780]

約数ペア:

[(1, 21072780), (2, 10536390), (3, 7024260), (4, 5268195), (5, 4214556), (6, 3512130), (9, 2341420), (10, 2107278), (12, 1756065), (15, 1404852), (18, 1170710), (20, 1053639), (30, 702426), (36, 585355), (45, 468284), (60, 351213), (90, 234142), (180, 117071)]