21228288

素因数分解:

$2^8\times 3^1\times {\mathrm{131}}^1\times {\mathrm{211}}^1$

素因数の和:361

約数の個数: 72

約数和(自身を含む): 57199296

約数和(自身を除く): 35971008

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 131, 192, 211, 256, 262, 384, 393, 422, 524, 633, 768, 786, 844, 1048, 1266, 1572, 1688, 2096, 2532, 3144, 3376, 4192, 5064, 6288, 6752, 8384, 10128, 12576, 13504, 16768, 20256, 25152, 27008, 27641, 33536, 40512, 50304, 54016, 55282, 81024, 82923, 100608, 110564, 162048, 165846, 221128, 331692, 442256, 663384, 884512, 1326768, 1769024, 2653536, 3538048, 5307072, 7076096, 10614144, 21228288]

約数ペア:

[(1, 21228288), (2, 10614144), (3, 7076096), (4, 5307072), (6, 3538048), (8, 2653536), (12, 1769024), (16, 1326768), (24, 884512), (32, 663384), (48, 442256), (64, 331692), (96, 221128), (128, 165846), (131, 162048), (192, 110564), (211, 100608), (256, 82923), (262, 81024), (384, 55282), (393, 54016), (422, 50304), (524, 40512), (633, 33536), (768, 27641), (786, 27008), (844, 25152), (1048, 20256), (1266, 16768), (1572, 13504), (1688, 12576), (2096, 10128), (2532, 8384), (3144, 6752), (3376, 6288), (4192, 5064)]