21979872

素因数分解:

$2^5\times 3^2\times {\mathrm{167}}^1\times {\mathrm{457}}^1$

素因数の和:640

約数の個数: 72

約数和(自身を含む): 63017136

約数和(自身を除く): 41037264

約数列:

[1, 2, 3, 4, 6, 8, 9, 12, 16, 18, 24, 32, 36, 48, 72, 96, 144, 167, 288, 334, 457, 501, 668, 914, 1002, 1336, 1371, 1503, 1828, 2004, 2672, 2742, 3006, 3656, 4008, 4113, 5344, 5484, 6012, 7312, 8016, 8226, 10968, 12024, 14624, 16032, 16452, 21936, 24048, 32904, 43872, 48096, 65808, 76319, 131616, 152638, 228957, 305276, 457914, 610552, 686871, 915828, 1221104, 1373742, 1831656, 2442208, 2747484, 3663312, 5494968, 7326624, 10989936, 21979872]

約数ペア:

[(1, 21979872), (2, 10989936), (3, 7326624), (4, 5494968), (6, 3663312), (8, 2747484), (9, 2442208), (12, 1831656), (16, 1373742), (18, 1221104), (24, 915828), (32, 686871), (36, 610552), (48, 457914), (72, 305276), (96, 228957), (144, 152638), (167, 131616), (288, 76319), (334, 65808), (457, 48096), (501, 43872), (668, 32904), (914, 24048), (1002, 21936), (1336, 16452), (1371, 16032), (1503, 14624), (1828, 12024), (2004, 10968), (2672, 8226), (2742, 8016), (3006, 7312), (3656, 6012), (4008, 5484), (4113, 5344)]