18938488

素因数分解:

$2^3\times {\mathrm{67}}^1\times {\mathrm{89}}^1\times {\mathrm{397}}^1$

素因数の和:559

約数の個数: 32

約数和(自身を含む): 36536400

約数和(自身を除く): 17597912

約数列:

[1, 2, 4, 8, 67, 89, 134, 178, 268, 356, 397, 536, 712, 794, 1588, 3176, 5963, 11926, 23852, 26599, 35333, 47704, 53198, 70666, 106396, 141332, 212792, 282664, 2367311, 4734622, 9469244, 18938488]

約数ペア:

[(1, 18938488), (2, 9469244), (4, 4734622), (8, 2367311), (67, 282664), (89, 212792), (134, 141332), (178, 106396), (268, 70666), (356, 53198), (397, 47704), (536, 35333), (712, 26599), (794, 23852), (1588, 11926), (3176, 5963)]