20626821

素因数分解:

$3^2\times {\mathrm{67}}^1\times {\mathrm{79}}^1\times {\mathrm{433}}^1$

素因数の和:585

約数の個数: 24

約数和(自身を含む): 30692480

約数和(自身を除く): 10065659

約数列:

[1, 3, 9, 67, 79, 201, 237, 433, 603, 711, 1299, 3897, 5293, 15879, 29011, 34207, 47637, 87033, 102621, 261099, 307863, 2291869, 6875607, 20626821]

約数ペア:

[(1, 20626821), (3, 6875607), (9, 2291869), (67, 307863), (79, 261099), (201, 102621), (237, 87033), (433, 47637), (603, 34207), (711, 29011), (1299, 15879), (3897, 5293)]