21702016

素因数分解:

$2^7\times 7^1\times {\mathrm{53}}^1\times {\mathrm{457}}^1$

素因数の和:531

約数の個数: 64

約数和(自身を含む): 50453280

約数和(自身を除く): 28751264

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 53, 56, 64, 106, 112, 128, 212, 224, 371, 424, 448, 457, 742, 848, 896, 914, 1484, 1696, 1828, 2968, 3199, 3392, 3656, 5936, 6398, 6784, 7312, 11872, 12796, 14624, 23744, 24221, 25592, 29248, 47488, 48442, 51184, 58496, 96884, 102368, 169547, 193768, 204736, 339094, 387536, 409472, 678188, 775072, 1356376, 1550144, 2712752, 3100288, 5425504, 10851008, 21702016]

約数ペア:

[(1, 21702016), (2, 10851008), (4, 5425504), (7, 3100288), (8, 2712752), (14, 1550144), (16, 1356376), (28, 775072), (32, 678188), (53, 409472), (56, 387536), (64, 339094), (106, 204736), (112, 193768), (128, 169547), (212, 102368), (224, 96884), (371, 58496), (424, 51184), (448, 48442), (457, 47488), (742, 29248), (848, 25592), (896, 24221), (914, 23744), (1484, 14624), (1696, 12796), (1828, 11872), (2968, 7312), (3199, 6784), (3392, 6398), (3656, 5936)]