19388728

素因数分解:

$2^3\times {\mathrm{61}}^1\times {\mathrm{67}}^1\times {\mathrm{593}}^1$

素因数の和:727

約数の個数: 32

約数和(自身を含む): 37564560

約数和(自身を除く): 18175832

約数列:

[1, 2, 4, 8, 61, 67, 122, 134, 244, 268, 488, 536, 593, 1186, 2372, 4087, 4744, 8174, 16348, 32696, 36173, 39731, 72346, 79462, 144692, 158924, 289384, 317848, 2423591, 4847182, 9694364, 19388728]

約数ペア:

[(1, 19388728), (2, 9694364), (4, 4847182), (8, 2423591), (61, 317848), (67, 289384), (122, 158924), (134, 144692), (244, 79462), (268, 72346), (488, 39731), (536, 36173), (593, 32696), (1186, 16348), (2372, 8174), (4087, 4744)]