21071142

素因数分解:

$2^1\times 3^2\times {\mathrm{59}}^1\times {\mathrm{19841}}^1$

素因数の和:19908

約数の個数: 24

約数和(自身を含む): 46430280

約数和(自身を除く): 25359138

約数列:

[1, 2, 3, 6, 9, 18, 59, 118, 177, 354, 531, 1062, 19841, 39682, 59523, 119046, 178569, 357138, 1170619, 2341238, 3511857, 7023714, 10535571, 21071142]

約数ペア:

[(1, 21071142), (2, 10535571), (3, 7023714), (6, 3511857), (9, 2341238), (18, 1170619), (59, 357138), (118, 178569), (177, 119046), (354, 59523), (531, 39682), (1062, 19841)]