21906528

素因数分解:

$2^5\times 3^1\times 7^2\times {\mathrm{4657}}^1$

素因数の和:4684

約数の個数: 72

約数和(自身を含む): 66907512

約数和(自身を除く): 45000984

約数列:

[1, 2, 3, 4, 6, 7, 8, 12, 14, 16, 21, 24, 28, 32, 42, 48, 49, 56, 84, 96, 98, 112, 147, 168, 196, 224, 294, 336, 392, 588, 672, 784, 1176, 1568, 2352, 4657, 4704, 9314, 13971, 18628, 27942, 32599, 37256, 55884, 65198, 74512, 97797, 111768, 130396, 149024, 195594, 223536, 228193, 260792, 391188, 447072, 456386, 521584, 684579, 782376, 912772, 1043168, 1369158, 1564752, 1825544, 2738316, 3129504, 3651088, 5476632, 7302176, 10953264, 21906528]

約数ペア:

[(1, 21906528), (2, 10953264), (3, 7302176), (4, 5476632), (6, 3651088), (7, 3129504), (8, 2738316), (12, 1825544), (14, 1564752), (16, 1369158), (21, 1043168), (24, 912772), (28, 782376), (32, 684579), (42, 521584), (48, 456386), (49, 447072), (56, 391188), (84, 260792), (96, 228193), (98, 223536), (112, 195594), (147, 149024), (168, 130396), (196, 111768), (224, 97797), (294, 74512), (336, 65198), (392, 55884), (588, 37256), (672, 32599), (784, 27942), (1176, 18628), (1568, 13971), (2352, 9314), (4657, 4704)]