20986630

素因数分解:

$2^1\times 5^1\times 7^1\times {\mathrm{173}}^1\times {\mathrm{1733}}^1$

素因数の和:1920

約数の個数: 32

約数和(自身を含む): 43447104

約数和(自身を除く): 22460474

約数列:

[1, 2, 5, 7, 10, 14, 35, 70, 173, 346, 865, 1211, 1730, 1733, 2422, 3466, 6055, 8665, 12110, 12131, 17330, 24262, 60655, 121310, 299809, 599618, 1499045, 2098663, 2998090, 4197326, 10493315, 20986630]

約数ペア:

[(1, 20986630), (2, 10493315), (5, 4197326), (7, 2998090), (10, 2098663), (14, 1499045), (35, 599618), (70, 299809), (173, 121310), (346, 60655), (865, 24262), (1211, 17330), (1730, 12131), (1733, 12110), (2422, 8665), (3466, 6055)]