21965824

素因数分解:

$2^{10}\times {\mathrm{19}}^1\times {\mathrm{1129}}^1$

素因数の和:1168

約数の個数: 44

約数和(自身を含む): 46262200

約数和(自身を除く): 24296376

約数列:

[1, 2, 4, 8, 16, 19, 32, 38, 64, 76, 128, 152, 256, 304, 512, 608, 1024, 1129, 1216, 2258, 2432, 4516, 4864, 9032, 9728, 18064, 19456, 21451, 36128, 42902, 72256, 85804, 144512, 171608, 289024, 343216, 578048, 686432, 1156096, 1372864, 2745728, 5491456, 10982912, 21965824]

約数ペア:

[(1, 21965824), (2, 10982912), (4, 5491456), (8, 2745728), (16, 1372864), (19, 1156096), (32, 686432), (38, 578048), (64, 343216), (76, 289024), (128, 171608), (152, 144512), (256, 85804), (304, 72256), (512, 42902), (608, 36128), (1024, 21451), (1129, 19456), (1216, 18064), (2258, 9728), (2432, 9032), (4516, 4864)]