21936520

素因数分解:

$2^3\times 5^1\times {\mathrm{379}}^1\times {\mathrm{1447}}^1$

素因数の和:1837

約数の個数: 32

約数和(自身を含む): 49521600

約数和(自身を除く): 27585080

約数列:

[1, 2, 4, 5, 8, 10, 20, 40, 379, 758, 1447, 1516, 1895, 2894, 3032, 3790, 5788, 7235, 7580, 11576, 14470, 15160, 28940, 57880, 548413, 1096826, 2193652, 2742065, 4387304, 5484130, 10968260, 21936520]

約数ペア:

[(1, 21936520), (2, 10968260), (4, 5484130), (5, 4387304), (8, 2742065), (10, 2193652), (20, 1096826), (40, 548413), (379, 57880), (758, 28940), (1447, 15160), (1516, 14470), (1895, 11576), (2894, 7580), (3032, 7235), (3790, 5788)]