21371392

素因数分解:

$2^9\times 7^1\times {\mathrm{67}}^1\times {\mathrm{89}}^1$

素因数の和:181

約数の個数: 80

約数和(自身を含む): 50086080

約数和(自身を除く): 28714688

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 32, 56, 64, 67, 89, 112, 128, 134, 178, 224, 256, 268, 356, 448, 469, 512, 536, 623, 712, 896, 938, 1072, 1246, 1424, 1792, 1876, 2144, 2492, 2848, 3584, 3752, 4288, 4984, 5696, 5963, 7504, 8576, 9968, 11392, 11926, 15008, 17152, 19936, 22784, 23852, 30016, 34304, 39872, 41741, 45568, 47704, 60032, 79744, 83482, 95408, 120064, 159488, 166964, 190816, 240128, 318976, 333928, 381632, 667856, 763264, 1335712, 1526528, 2671424, 3053056, 5342848, 10685696, 21371392]

約数ペア:

[(1, 21371392), (2, 10685696), (4, 5342848), (7, 3053056), (8, 2671424), (14, 1526528), (16, 1335712), (28, 763264), (32, 667856), (56, 381632), (64, 333928), (67, 318976), (89, 240128), (112, 190816), (128, 166964), (134, 159488), (178, 120064), (224, 95408), (256, 83482), (268, 79744), (356, 60032), (448, 47704), (469, 45568), (512, 41741), (536, 39872), (623, 34304), (712, 30016), (896, 23852), (938, 22784), (1072, 19936), (1246, 17152), (1424, 15008), (1792, 11926), (1876, 11392), (2144, 9968), (2492, 8576), (2848, 7504), (3584, 5963), (3752, 5696), (4288, 4984)]