18782013

素因数分解:

$3^1\times {\mathrm{19}}^1\times {\mathrm{43}}^1\times {\mathrm{79}}^1\times {\mathrm{97}}^1$

素因数の和:241

約数の個数: 32

約数和(自身を含む): 27596800

約数和(自身を除く): 8814787

約数列:

[1, 3, 19, 43, 57, 79, 97, 129, 237, 291, 817, 1501, 1843, 2451, 3397, 4171, 4503, 5529, 7663, 10191, 12513, 22989, 64543, 79249, 145597, 193629, 237747, 329509, 436791, 988527, 6260671, 18782013]

約数ペア:

[(1, 18782013), (3, 6260671), (19, 988527), (43, 436791), (57, 329509), (79, 237747), (97, 193629), (129, 145597), (237, 79249), (291, 64543), (817, 22989), (1501, 12513), (1843, 10191), (2451, 7663), (3397, 5529), (4171, 4503)]