21165375488

素因数分解:

$2^{17}\times {\mathrm{31}}^1\times {\mathrm{5209}}^1$

素因数の和:5274

約数の個数: 72

約数和(自身を含む): 43704480960

約数和(自身を除く): 22539105472

約数列:

[1, 2, 4, 8, 16, 31, 32, 62, 64, 124, 128, 248, 256, 496, 512, 992, 1024, 1984, 2048, 3968, 4096, 5209, 7936, 8192, 10418, 15872, 16384, 20836, 31744, 32768, 41672, 63488, 65536, 83344, 126976, 131072, 161479, 166688, 253952, 322958, 333376, 507904, 645916, 666752, 1015808, 1291832, 1333504, 2031616, 2583664, 2667008, 4063232, 5167328, 5334016, 10334656, 10668032, 20669312, 21336064, 41338624, 42672128, 82677248, 85344256, 165354496, 170688512, 330708992, 341377024, 661417984, 682754048, 1322835968, 2645671936, 5291343872, 10582687744, 21165375488]

約数ペア:

[(1, 21165375488), (2, 10582687744), (4, 5291343872), (8, 2645671936), (16, 1322835968), (31, 682754048), (32, 661417984), (62, 341377024), (64, 330708992), (124, 170688512), (128, 165354496), (248, 85344256), (256, 82677248), (496, 42672128), (512, 41338624), (992, 21336064), (1024, 20669312), (1984, 10668032), (2048, 10334656), (3968, 5334016), (4096, 5167328), (5209, 4063232), (7936, 2667008), (8192, 2583664), (10418, 2031616), (15872, 1333504), (16384, 1291832), (20836, 1015808), (31744, 666752), (32768, 645916), (41672, 507904), (63488, 333376), (65536, 322958), (83344, 253952), (126976, 166688), (131072, 161479)]