21706520

素因数分解:

$2^3\times 5^1\times {\mathrm{11}}^1\times {\mathrm{49333}}^1$

素因数の和:49355

約数の個数: 32

約数和(自身を含む): 53280720

約数和(自身を除く): 31574200

約数列:

[1, 2, 4, 5, 8, 10, 11, 20, 22, 40, 44, 55, 88, 110, 220, 440, 49333, 98666, 197332, 246665, 394664, 493330, 542663, 986660, 1085326, 1973320, 2170652, 2713315, 4341304, 5426630, 10853260, 21706520]

約数ペア:

[(1, 21706520), (2, 10853260), (4, 5426630), (5, 4341304), (8, 2713315), (10, 2170652), (11, 1973320), (20, 1085326), (22, 986660), (40, 542663), (44, 493330), (55, 394664), (88, 246665), (110, 197332), (220, 98666), (440, 49333)]