21124680

素因数分解:

$2^3\times 3^1\times 5^1\times {\mathrm{401}}^1\times {\mathrm{439}}^1$

素因数の和:854

約数の個数: 64

約数和(自身を含む): 63676800

約数和(自身を除く): 42552120

約数列:

[1, 2, 3, 4, 5, 6, 8, 10, 12, 15, 20, 24, 30, 40, 60, 120, 401, 439, 802, 878, 1203, 1317, 1604, 1756, 2005, 2195, 2406, 2634, 3208, 3512, 4010, 4390, 4812, 5268, 6015, 6585, 8020, 8780, 9624, 10536, 12030, 13170, 16040, 17560, 24060, 26340, 48120, 52680, 176039, 352078, 528117, 704156, 880195, 1056234, 1408312, 1760390, 2112468, 2640585, 3520780, 4224936, 5281170, 7041560, 10562340, 21124680]

約数ペア:

[(1, 21124680), (2, 10562340), (3, 7041560), (4, 5281170), (5, 4224936), (6, 3520780), (8, 2640585), (10, 2112468), (12, 1760390), (15, 1408312), (20, 1056234), (24, 880195), (30, 704156), (40, 528117), (60, 352078), (120, 176039), (401, 52680), (439, 48120), (802, 26340), (878, 24060), (1203, 17560), (1317, 16040), (1604, 13170), (1756, 12030), (2005, 10536), (2195, 9624), (2406, 8780), (2634, 8020), (3208, 6585), (3512, 6015), (4010, 5268), (4390, 4812)]