21781991718

素因数分解:

$2^1\times 3^5\times {\mathrm{67}}^1\times {\mathrm{668939}}^1$

素因数の和:669023

約数の個数: 48

約数和(自身を含む): 49672808640

約数和(自身を除く): 27890816922

約数列:

[1, 2, 3, 6, 9, 18, 27, 54, 67, 81, 134, 162, 201, 243, 402, 486, 603, 1206, 1809, 3618, 5427, 10854, 16281, 32562, 668939, 1337878, 2006817, 4013634, 6020451, 12040902, 18061353, 36122706, 44818913, 54184059, 89637826, 108368118, 134456739, 162552177, 268913478, 325104354, 403370217, 806740434, 1210110651, 2420221302, 3630331953, 7260663906, 10890995859, 21781991718]

約数ペア:

[(1, 21781991718), (2, 10890995859), (3, 7260663906), (6, 3630331953), (9, 2420221302), (18, 1210110651), (27, 806740434), (54, 403370217), (67, 325104354), (81, 268913478), (134, 162552177), (162, 134456739), (201, 108368118), (243, 89637826), (402, 54184059), (486, 44818913), (603, 36122706), (1206, 18061353), (1809, 12040902), (3618, 6020451), (5427, 4013634), (10854, 2006817), (16281, 1337878), (32562, 668939)]