21031915060

素因数分解:

$2^2\times 5^1\times {\mathrm{13}}^1\times {\mathrm{67}}^1\times {\mathrm{1207343}}^1$

素因数の和:1207432

約数の個数: 48

約数和(自身を含む): 48274442496

約数和(自身を除く): 27242527436

約数列:

[1, 2, 4, 5, 10, 13, 20, 26, 52, 65, 67, 130, 134, 260, 268, 335, 670, 871, 1340, 1742, 3484, 4355, 8710, 17420, 1207343, 2414686, 4829372, 6036715, 12073430, 15695459, 24146860, 31390918, 62781836, 78477295, 80891981, 156954590, 161783962, 313909180, 323567924, 404459905, 808919810, 1051595753, 1617839620, 2103191506, 4206383012, 5257978765, 10515957530, 21031915060]

約数ペア:

[(1, 21031915060), (2, 10515957530), (4, 5257978765), (5, 4206383012), (10, 2103191506), (13, 1617839620), (20, 1051595753), (26, 808919810), (52, 404459905), (65, 323567924), (67, 313909180), (130, 161783962), (134, 156954590), (260, 80891981), (268, 78477295), (335, 62781836), (670, 31390918), (871, 24146860), (1340, 15695459), (1742, 12073430), (3484, 6036715), (4355, 4829372), (8710, 2414686), (17420, 1207343)]