21748318

素因数分解:

$2^1\times {\mathrm{29}}^1\times {\mathrm{569}}^1\times {\mathrm{659}}^1$

素因数の和:1259

約数の個数: 16

約数和(自身を含む): 33858000

約数和(自身を除く): 12109682

約数列:

[1, 2, 29, 58, 569, 659, 1138, 1318, 16501, 19111, 33002, 38222, 374971, 749942, 10874159, 21748318]

約数ペア:

[(1, 21748318), (2, 10874159), (29, 749942), (58, 374971), (569, 38222), (659, 33002), (1138, 19111), (1318, 16501)]