21002954

素因数分解:

$2^1\times 7^1\times {\mathrm{383}}^1\times {\mathrm{3917}}^1$

素因数の和:4309

約数の個数: 16

約数和(自身を含む): 36108288

約数和(自身を除く): 15105334

約数列:

[1, 2, 7, 14, 383, 766, 2681, 3917, 5362, 7834, 27419, 54838, 1500211, 3000422, 10501477, 21002954]

約数ペア:

[(1, 21002954), (2, 10501477), (7, 3000422), (14, 1500211), (383, 54838), (766, 27419), (2681, 7834), (3917, 5362)]