21087316

素因数分解:

$2^2\times {\mathrm{31}}^1\times {\mathrm{173}}^1\times {\mathrm{983}}^1$

素因数の和:1191

約数の個数: 24

約数和(自身を含む): 38352384

約数和(自身を除く): 17265068

約数列:

[1, 2, 4, 31, 62, 124, 173, 346, 692, 983, 1966, 3932, 5363, 10726, 21452, 30473, 60946, 121892, 170059, 340118, 680236, 5271829, 10543658, 21087316]

約数ペア:

[(1, 21087316), (2, 10543658), (4, 5271829), (31, 680236), (62, 340118), (124, 170059), (173, 121892), (346, 60946), (692, 30473), (983, 21452), (1966, 10726), (3932, 5363)]