19401976

素因数分解:

$2^3\times {\mathrm{11}}^1\times {\mathrm{47}}^1\times {\mathrm{4691}}^1$

素因数の和:4755

約数の個数: 32

約数和(自身を含む): 40538880

約数和(自身を除く): 21136904

約数列:

[1, 2, 4, 8, 11, 22, 44, 47, 88, 94, 188, 376, 517, 1034, 2068, 4136, 4691, 9382, 18764, 37528, 51601, 103202, 206404, 220477, 412808, 440954, 881908, 1763816, 2425247, 4850494, 9700988, 19401976]

約数ペア:

[(1, 19401976), (2, 9700988), (4, 4850494), (8, 2425247), (11, 1763816), (22, 881908), (44, 440954), (47, 412808), (88, 220477), (94, 206404), (188, 103202), (376, 51601), (517, 37528), (1034, 18764), (2068, 9382), (4136, 4691)]