21550816

素因数分解:

$2^5\times 7^1\times {\mathrm{23}}^1\times {\mathrm{47}}^1\times {\mathrm{89}}^1$

素因数の和:176

約数の個数: 96

約数和(自身を含む): 52254720

約数和(自身を除く): 30703904

約数列:

[1, 2, 4, 7, 8, 14, 16, 23, 28, 32, 46, 47, 56, 89, 92, 94, 112, 161, 178, 184, 188, 224, 322, 329, 356, 368, 376, 623, 644, 658, 712, 736, 752, 1081, 1246, 1288, 1316, 1424, 1504, 2047, 2162, 2492, 2576, 2632, 2848, 4094, 4183, 4324, 4984, 5152, 5264, 7567, 8188, 8366, 8648, 9968, 10528, 14329, 15134, 16376, 16732, 17296, 19936, 28658, 29281, 30268, 32752, 33464, 34592, 57316, 58562, 60536, 65504, 66928, 96209, 114632, 117124, 121072, 133856, 192418, 229264, 234248, 242144, 384836, 458528, 468496, 673463, 769672, 936992, 1346926, 1539344, 2693852, 3078688, 5387704, 10775408, 21550816]

約数ペア:

[(1, 21550816), (2, 10775408), (4, 5387704), (7, 3078688), (8, 2693852), (14, 1539344), (16, 1346926), (23, 936992), (28, 769672), (32, 673463), (46, 468496), (47, 458528), (56, 384836), (89, 242144), (92, 234248), (94, 229264), (112, 192418), (161, 133856), (178, 121072), (184, 117124), (188, 114632), (224, 96209), (322, 66928), (329, 65504), (356, 60536), (368, 58562), (376, 57316), (623, 34592), (644, 33464), (658, 32752), (712, 30268), (736, 29281), (752, 28658), (1081, 19936), (1246, 17296), (1288, 16732), (1316, 16376), (1424, 15134), (1504, 14329), (2047, 10528), (2162, 9968), (2492, 8648), (2576, 8366), (2632, 8188), (2848, 7567), (4094, 5264), (4183, 5152), (4324, 4984)]