20709376

素因数分解:

$2^{18}\times {\mathrm{79}}^1$

素因数の和:115

約数の個数: 38

約数和(自身を含む): 41942960

約数和(自身を除く): 21233584

約数列:

[1, 2, 4, 8, 16, 32, 64, 79, 128, 158, 256, 316, 512, 632, 1024, 1264, 2048, 2528, 4096, 5056, 8192, 10112, 16384, 20224, 32768, 40448, 65536, 80896, 131072, 161792, 262144, 323584, 647168, 1294336, 2588672, 5177344, 10354688, 20709376]

約数ペア:

[(1, 20709376), (2, 10354688), (4, 5177344), (8, 2588672), (16, 1294336), (32, 647168), (64, 323584), (79, 262144), (128, 161792), (158, 131072), (256, 80896), (316, 65536), (512, 40448), (632, 32768), (1024, 20224), (1264, 16384), (2048, 10112), (2528, 8192), (4096, 5056)]