21415040

素因数分解:

$2^7\times 5^1\times {\mathrm{33461}}^1$

素因数の和:33480

約数の個数: 32

約数和(自身を含む): 51196860

約数和(自身を除く): 29781820

約数列:

[1, 2, 4, 5, 8, 10, 16, 20, 32, 40, 64, 80, 128, 160, 320, 640, 33461, 66922, 133844, 167305, 267688, 334610, 535376, 669220, 1070752, 1338440, 2141504, 2676880, 4283008, 5353760, 10707520, 21415040]

約数ペア:

[(1, 21415040), (2, 10707520), (4, 5353760), (5, 4283008), (8, 2676880), (10, 2141504), (16, 1338440), (20, 1070752), (32, 669220), (40, 535376), (64, 334610), (80, 267688), (128, 167305), (160, 133844), (320, 66922), (640, 33461)]