21059536

素因数分解:

$2^4\times {\mathrm{23}}^1\times {\mathrm{89}}^1\times {\mathrm{643}}^1$

素因数の和:763

約数の個数: 40

約数和(自身を含む): 43122240

約数和(自身を除く): 22062704

約数列:

[1, 2, 4, 8, 16, 23, 46, 89, 92, 178, 184, 356, 368, 643, 712, 1286, 1424, 2047, 2572, 4094, 5144, 8188, 10288, 14789, 16376, 29578, 32752, 57227, 59156, 114454, 118312, 228908, 236624, 457816, 915632, 1316221, 2632442, 5264884, 10529768, 21059536]

約数ペア:

[(1, 21059536), (2, 10529768), (4, 5264884), (8, 2632442), (16, 1316221), (23, 915632), (46, 457816), (89, 236624), (92, 228908), (178, 118312), (184, 114454), (356, 59156), (368, 57227), (643, 32752), (712, 29578), (1286, 16376), (1424, 14789), (2047, 10288), (2572, 8188), (4094, 5144)]