20218473

素因数分解:

$3^2\times {\mathrm{11}}^1\times {\mathrm{331}}^1\times {\mathrm{617}}^1$

素因数の和:965

約数の個数: 24

約数和(自身を含む): 32007456

約数和(自身を除く): 11788983

約数列:

[1, 3, 9, 11, 33, 99, 331, 617, 993, 1851, 2979, 3641, 5553, 6787, 10923, 20361, 32769, 61083, 204227, 612681, 1838043, 2246497, 6739491, 20218473]

約数ペア:

[(1, 20218473), (3, 6739491), (9, 2246497), (11, 1838043), (33, 612681), (99, 204227), (331, 61083), (617, 32769), (993, 20361), (1851, 10923), (2979, 6787), (3641, 5553)]