61981605

素因数分解:

$3^4\times 5^1\times 7^1\times {\mathrm{21863}}^1$

素因数の和:21887

約数の個数: 40

約数和(自身を含む): 126986112

約数和(自身を除く): 65004507

約数列:

[1, 3, 5, 7, 9, 15, 21, 27, 35, 45, 63, 81, 105, 135, 189, 315, 405, 567, 945, 2835, 21863, 65589, 109315, 153041, 196767, 327945, 459123, 590301, 765205, 983835, 1377369, 1770903, 2295615, 2951505, 4132107, 6886845, 8854515, 12396321, 20660535, 61981605]

約数ペア:

[(1, 61981605), (3, 20660535), (5, 12396321), (7, 8854515), (9, 6886845), (15, 4132107), (21, 2951505), (27, 2295615), (35, 1770903), (45, 1377369), (63, 983835), (81, 765205), (105, 590301), (135, 459123), (189, 327945), (315, 196767), (405, 153041), (567, 109315), (945, 65589), (2835, 21863)]