20947994

素因数分解:

$2^1\times {\mathrm{19}}^1\times {\mathrm{37}}^1\times {\mathrm{47}}^1\times {\mathrm{317}}^1$

素因数の和:422

約数の個数: 32

約数和(自身を含む): 34801920

約数和(自身を除く): 13853926

約数列:

[1, 2, 19, 37, 38, 47, 74, 94, 317, 634, 703, 893, 1406, 1739, 1786, 3478, 6023, 11729, 12046, 14899, 23458, 29798, 33041, 66082, 222851, 283081, 445702, 551263, 566162, 1102526, 10473997, 20947994]

約数ペア:

[(1, 20947994), (2, 10473997), (19, 1102526), (37, 566162), (38, 551263), (47, 445702), (74, 283081), (94, 222851), (317, 66082), (634, 33041), (703, 29798), (893, 23458), (1406, 14899), (1739, 12046), (1786, 11729), (3478, 6023)]