18556856

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{389}}^1$

素因数の和:551

約数の個数: 32

約数和(自身を含む): 35802000

約数和(自身を除く): 17245144

約数列:

[1, 2, 4, 8, 67, 89, 134, 178, 268, 356, 389, 536, 712, 778, 1556, 3112, 5963, 11926, 23852, 26063, 34621, 47704, 52126, 69242, 104252, 138484, 208504, 276968, 2319607, 4639214, 9278428, 18556856]

約数ペア:

[(1, 18556856), (2, 9278428), (4, 4639214), (8, 2319607), (67, 276968), (89, 208504), (134, 138484), (178, 104252), (268, 69242), (356, 52126), (389, 47704), (536, 34621), (712, 26063), (778, 23852), (1556, 11926), (3112, 5963)]