21647393

素因数分解:

${\mathrm{23}}^1\times {\mathrm{31}}^1\times {\mathrm{97}}^1\times {\mathrm{313}}^1$

素因数の和:464

約数の個数: 16

約数和(自身を含む): 23632896

約数和(自身を除く): 1985503

約数列:

[1, 23, 31, 97, 313, 713, 2231, 3007, 7199, 9703, 30361, 69161, 223169, 698303, 941191, 21647393]

約数ペア:

[(1, 21647393), (23, 941191), (31, 698303), (97, 223169), (313, 69161), (713, 30361), (2231, 9703), (3007, 7199)]