21408384

素因数分解:

$2^7\times 3^1\times {\mathrm{197}}^1\times {\mathrm{283}}^1$

素因数の和:497

約数の個数: 64

約数和(自身を含む): 57356640

約数和(自身を除く): 35948256

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 24, 32, 48, 64, 96, 128, 192, 197, 283, 384, 394, 566, 591, 788, 849, 1132, 1182, 1576, 1698, 2264, 2364, 3152, 3396, 4528, 4728, 6304, 6792, 9056, 9456, 12608, 13584, 18112, 18912, 25216, 27168, 36224, 37824, 54336, 55751, 75648, 108672, 111502, 167253, 223004, 334506, 446008, 669012, 892016, 1338024, 1784032, 2676048, 3568064, 5352096, 7136128, 10704192, 21408384]

約数ペア:

[(1, 21408384), (2, 10704192), (3, 7136128), (4, 5352096), (6, 3568064), (8, 2676048), (12, 1784032), (16, 1338024), (24, 892016), (32, 669012), (48, 446008), (64, 334506), (96, 223004), (128, 167253), (192, 111502), (197, 108672), (283, 75648), (384, 55751), (394, 54336), (566, 37824), (591, 36224), (788, 27168), (849, 25216), (1132, 18912), (1182, 18112), (1576, 13584), (1698, 12608), (2264, 9456), (2364, 9056), (3152, 6792), (3396, 6304), (4528, 4728)]