21368207

素因数分解:

$7^1\times {\mathrm{31}}^1\times {\mathrm{59}}^1\times {\mathrm{1669}}^1$

素因数の和:1766

約数の個数: 16

約数和(自身を含む): 25651200

約数和(自身を除く): 4282993

約数列:

[1, 7, 31, 59, 217, 413, 1669, 1829, 11683, 12803, 51739, 98471, 362173, 689297, 3052601, 21368207]

約数ペア:

[(1, 21368207), (7, 3052601), (31, 689297), (59, 362173), (217, 98471), (413, 51739), (1669, 12803), (1829, 11683)]