21108584

素因数分解:

$2^3\times 7^1\times {\mathrm{71}}^1\times {\mathrm{5309}}^1$

素因数の和:5393

約数の個数: 32

約数和(自身を含む): 45878400

約数和(自身を除く): 24769816

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 71, 142, 284, 497, 568, 994, 1988, 3976, 5309, 10618, 21236, 37163, 42472, 74326, 148652, 297304, 376939, 753878, 1507756, 2638573, 3015512, 5277146, 10554292, 21108584]

約数ペア:

[(1, 21108584), (2, 10554292), (4, 5277146), (7, 3015512), (8, 2638573), (14, 1507756), (28, 753878), (56, 376939), (71, 297304), (142, 148652), (284, 74326), (497, 42472), (568, 37163), (994, 21236), (1988, 10618), (3976, 5309)]