21409984

素因数分解:

$2^6\times {\mathrm{67}}^1\times {\mathrm{4993}}^1$

素因数の和:5072

約数の個数: 28

約数和(自身を含む): 43128184

約数和(自身を除く): 21718200

約数列:

[1, 2, 4, 8, 16, 32, 64, 67, 134, 268, 536, 1072, 2144, 4288, 4993, 9986, 19972, 39944, 79888, 159776, 319552, 334531, 669062, 1338124, 2676248, 5352496, 10704992, 21409984]

約数ペア:

[(1, 21409984), (2, 10704992), (4, 5352496), (8, 2676248), (16, 1338124), (32, 669062), (64, 334531), (67, 319552), (134, 159776), (268, 79888), (536, 39944), (1072, 19972), (2144, 9986), (4288, 4993)]