21995498

素因数分解:

$2^1\times 7^1\times {\mathrm{23}}^1\times {\mathrm{83}}^1\times {\mathrm{823}}^1$

素因数の和:938

約数の個数: 32

約数和(自身を含む): 39868416

約数和(自身を除く): 17872918

約数列:

[1, 2, 7, 14, 23, 46, 83, 161, 166, 322, 581, 823, 1162, 1646, 1909, 3818, 5761, 11522, 13363, 18929, 26726, 37858, 68309, 132503, 136618, 265006, 478163, 956326, 1571107, 3142214, 10997749, 21995498]

約数ペア:

[(1, 21995498), (2, 10997749), (7, 3142214), (14, 1571107), (23, 956326), (46, 478163), (83, 265006), (161, 136618), (166, 132503), (322, 68309), (581, 37858), (823, 26726), (1162, 18929), (1646, 13363), (1909, 11522), (3818, 5761)]