21445568

素因数分解:

$2^6\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{857}}^1$

素因数の和:909

約数の個数: 56

約数和(自身を含む): 47073312

約数和(自身を除く): 25627744

約数列:

[1, 2, 4, 8, 16, 17, 23, 32, 34, 46, 64, 68, 92, 136, 184, 272, 368, 391, 544, 736, 782, 857, 1088, 1472, 1564, 1714, 3128, 3428, 6256, 6856, 12512, 13712, 14569, 19711, 25024, 27424, 29138, 39422, 54848, 58276, 78844, 116552, 157688, 233104, 315376, 335087, 466208, 630752, 670174, 932416, 1261504, 1340348, 2680696, 5361392, 10722784, 21445568]

約数ペア:

[(1, 21445568), (2, 10722784), (4, 5361392), (8, 2680696), (16, 1340348), (17, 1261504), (23, 932416), (32, 670174), (34, 630752), (46, 466208), (64, 335087), (68, 315376), (92, 233104), (136, 157688), (184, 116552), (272, 78844), (368, 58276), (391, 54848), (544, 39422), (736, 29138), (782, 27424), (857, 25024), (1088, 19711), (1472, 14569), (1564, 13712), (1714, 12512), (3128, 6856), (3428, 6256)]