21915712

素因数分解:

$2^6\times 7^1\times {\mathrm{13}}^1\times {\mathrm{53}}^1\times {\mathrm{71}}^1$

素因数の和:156

約数の個数: 112

約数和(自身を含む): 55302912

約数和(自身を除く): 33387200

約数列:

[1, 2, 4, 7, 8, 13, 14, 16, 26, 28, 32, 52, 53, 56, 64, 71, 91, 104, 106, 112, 142, 182, 208, 212, 224, 284, 364, 371, 416, 424, 448, 497, 568, 689, 728, 742, 832, 848, 923, 994, 1136, 1378, 1456, 1484, 1696, 1846, 1988, 2272, 2756, 2912, 2968, 3392, 3692, 3763, 3976, 4544, 4823, 5512, 5824, 5936, 6461, 7384, 7526, 7952, 9646, 11024, 11872, 12922, 14768, 15052, 15904, 19292, 22048, 23744, 25844, 26341, 29536, 30104, 31808, 38584, 44096, 48919, 51688, 52682, 59072, 60208, 77168, 97838, 103376, 105364, 120416, 154336, 195676, 206752, 210728, 240832, 308672, 342433, 391352, 413504, 421456, 684866, 782704, 842912, 1369732, 1565408, 1685824, 2739464, 3130816, 5478928, 10957856, 21915712]

約数ペア:

[(1, 21915712), (2, 10957856), (4, 5478928), (7, 3130816), (8, 2739464), (13, 1685824), (14, 1565408), (16, 1369732), (26, 842912), (28, 782704), (32, 684866), (52, 421456), (53, 413504), (56, 391352), (64, 342433), (71, 308672), (91, 240832), (104, 210728), (106, 206752), (112, 195676), (142, 154336), (182, 120416), (208, 105364), (212, 103376), (224, 97838), (284, 77168), (364, 60208), (371, 59072), (416, 52682), (424, 51688), (448, 48919), (497, 44096), (568, 38584), (689, 31808), (728, 30104), (742, 29536), (832, 26341), (848, 25844), (923, 23744), (994, 22048), (1136, 19292), (1378, 15904), (1456, 15052), (1484, 14768), (1696, 12922), (1846, 11872), (1988, 11024), (2272, 9646), (2756, 7952), (2912, 7526), (2968, 7384), (3392, 6461), (3692, 5936), (3763, 5824), (3976, 5512), (4544, 4823)]