209931911

素因数分解:

$7^1\times {\mathrm{149}}^1\times {\mathrm{431}}^1\times {\mathrm{467}}^1$

素因数の和:1054

約数の個数: 16

約数和(自身を含む): 242611200

約数和(自身を除く): 32679289

約数列:

[1, 7, 149, 431, 467, 1043, 3017, 3269, 64219, 69583, 201277, 449533, 487081, 1408939, 29990273, 209931911]

約数ペア:

[(1, 209931911), (7, 29990273), (149, 1408939), (431, 487081), (467, 449533), (1043, 201277), (3017, 69583), (3269, 64219)]