21394912

素因数分解:

$2^5\times 7^1\times {\mathrm{11}}^1\times {\mathrm{19}}^1\times {\mathrm{457}}^1$

素因数の和:504

約数の個数: 96

約数和(自身を含む): 55399680

約数和(自身を除く): 34004768

約数列:

[1, 2, 4, 7, 8, 11, 14, 16, 19, 22, 28, 32, 38, 44, 56, 76, 77, 88, 112, 133, 152, 154, 176, 209, 224, 266, 304, 308, 352, 418, 457, 532, 608, 616, 836, 914, 1064, 1232, 1463, 1672, 1828, 2128, 2464, 2926, 3199, 3344, 3656, 4256, 5027, 5852, 6398, 6688, 7312, 8683, 10054, 11704, 12796, 14624, 17366, 20108, 23408, 25592, 34732, 35189, 40216, 46816, 51184, 60781, 69464, 70378, 80432, 95513, 102368, 121562, 138928, 140756, 160864, 191026, 243124, 277856, 281512, 382052, 486248, 563024, 668591, 764104, 972496, 1126048, 1337182, 1528208, 1944992, 2674364, 3056416, 5348728, 10697456, 21394912]

約数ペア:

[(1, 21394912), (2, 10697456), (4, 5348728), (7, 3056416), (8, 2674364), (11, 1944992), (14, 1528208), (16, 1337182), (19, 1126048), (22, 972496), (28, 764104), (32, 668591), (38, 563024), (44, 486248), (56, 382052), (76, 281512), (77, 277856), (88, 243124), (112, 191026), (133, 160864), (152, 140756), (154, 138928), (176, 121562), (209, 102368), (224, 95513), (266, 80432), (304, 70378), (308, 69464), (352, 60781), (418, 51184), (457, 46816), (532, 40216), (608, 35189), (616, 34732), (836, 25592), (914, 23408), (1064, 20108), (1232, 17366), (1463, 14624), (1672, 12796), (1828, 11704), (2128, 10054), (2464, 8683), (2926, 7312), (3199, 6688), (3344, 6398), (3656, 5852), (4256, 5027)]