20993043

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{23}}^1\times {\mathrm{67}}^1\times {\mathrm{239}}^1$

素因数の和:351

約数の個数: 32

約数和(自身を含む): 31334400

約数和(自身を除く): 10341357

約数列:

[1, 3, 19, 23, 57, 67, 69, 201, 239, 437, 717, 1273, 1311, 1541, 3819, 4541, 4623, 5497, 13623, 16013, 16491, 29279, 48039, 87837, 104443, 304247, 313329, 368299, 912741, 1104897, 6997681, 20993043]

約数ペア:

[(1, 20993043), (3, 6997681), (19, 1104897), (23, 912741), (57, 368299), (67, 313329), (69, 304247), (201, 104443), (239, 87837), (437, 48039), (717, 29279), (1273, 16491), (1311, 16013), (1541, 13623), (3819, 5497), (4541, 4623)]