21883628

素因数分解:

$2^2\times {\mathrm{13}}^1\times {\mathrm{61}}^1\times {\mathrm{6899}}^1$

素因数の和:6977

約数の個数: 24

約数和(自身を含む): 41924400

約数和(自身を除く): 20040772

約数列:

[1, 2, 4, 13, 26, 52, 61, 122, 244, 793, 1586, 3172, 6899, 13798, 27596, 89687, 179374, 358748, 420839, 841678, 1683356, 5470907, 10941814, 21883628]

約数ペア:

[(1, 21883628), (2, 10941814), (4, 5470907), (13, 1683356), (26, 841678), (52, 420839), (61, 358748), (122, 179374), (244, 89687), (793, 27596), (1586, 13798), (3172, 6899)]