21291008

素因数分解:

$2^{13}\times {\mathrm{23}}^1\times {\mathrm{113}}^1$

素因数の和:162

約数の個数: 56

約数和(自身を含む): 44823888

約数和(自身を除く): 23532880

約数列:

[1, 2, 4, 8, 16, 23, 32, 46, 64, 92, 113, 128, 184, 226, 256, 368, 452, 512, 736, 904, 1024, 1472, 1808, 2048, 2599, 2944, 3616, 4096, 5198, 5888, 7232, 8192, 10396, 11776, 14464, 20792, 23552, 28928, 41584, 47104, 57856, 83168, 94208, 115712, 166336, 188416, 231424, 332672, 462848, 665344, 925696, 1330688, 2661376, 5322752, 10645504, 21291008]

約数ペア:

[(1, 21291008), (2, 10645504), (4, 5322752), (8, 2661376), (16, 1330688), (23, 925696), (32, 665344), (46, 462848), (64, 332672), (92, 231424), (113, 188416), (128, 166336), (184, 115712), (226, 94208), (256, 83168), (368, 57856), (452, 47104), (512, 41584), (736, 28928), (904, 23552), (1024, 20792), (1472, 14464), (1808, 11776), (2048, 10396), (2599, 8192), (2944, 7232), (3616, 5888), (4096, 5198)]