21206401024

素因数分解:

$2^{28}\times {\mathrm{79}}^1$

素因数の和:135

約数の個数: 58

約数和(自身を含む): 42949672880

約数和(自身を除く): 21743271856

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, 524288, 647168, 1048576, 1294336, 2097152, 2588672, 4194304, 5177344, 8388608, 10354688, 16777216, 20709376, 33554432, 41418752, 67108864, 82837504, 134217728, 165675008, 268435456, 331350016, 662700032, 1325400064, 2650800128, 5301600256, 10603200512, 21206401024]

約数ペア:

[(1, 21206401024), (2, 10603200512), (4, 5301600256), (8, 2650800128), (16, 1325400064), (32, 662700032), (64, 331350016), (79, 268435456), (128, 165675008), (158, 134217728), (256, 82837504), (316, 67108864), (512, 41418752), (632, 33554432), (1024, 20709376), (1264, 16777216), (2048, 10354688), (2528, 8388608), (4096, 5177344), (5056, 4194304), (8192, 2588672), (10112, 2097152), (16384, 1294336), (20224, 1048576), (32768, 647168), (40448, 524288), (65536, 323584), (80896, 262144), (131072, 161792)]