21536907

素因数分解:

$3^1\times 7^1\times {\mathrm{149}}^1\times {\mathrm{6883}}^1$

素因数の和:7042

約数の個数: 16

約数和(自身を含む): 33043200

約数和(自身を除く): 11506293

約数列:

[1, 3, 7, 21, 149, 447, 1043, 3129, 6883, 20649, 48181, 144543, 1025567, 3076701, 7178969, 21536907]

約数ペア:

[(1, 21536907), (3, 7178969), (7, 3076701), (21, 1025567), (149, 144543), (447, 48181), (1043, 20649), (3129, 6883)]