21838570

素因数分解:

$2^1\times 5^1\times {\mathrm{13}}^1\times {\mathrm{31}}^1\times {\mathrm{5419}}^1$

素因数の和:5470

約数の個数: 32

約数和(自身を含む): 43706880

約数和(自身を除く): 21868310

約数列:

[1, 2, 5, 10, 13, 26, 31, 62, 65, 130, 155, 310, 403, 806, 2015, 4030, 5419, 10838, 27095, 54190, 70447, 140894, 167989, 335978, 352235, 704470, 839945, 1679890, 2183857, 4367714, 10919285, 21838570]

約数ペア:

[(1, 21838570), (2, 10919285), (5, 4367714), (10, 2183857), (13, 1679890), (26, 839945), (31, 704470), (62, 352235), (65, 335978), (130, 167989), (155, 140894), (310, 70447), (403, 54190), (806, 27095), (2015, 10838), (4030, 5419)]