221432253

素因数分解:

$3^1\times 7^1\times {\mathrm{67}}^1\times {\mathrm{337}}^1\times {\mathrm{467}}^1$

素因数の和:881

約数の個数: 32

約数和(自身を含む): 344208384

約数和(自身を除く): 122776131

約数列:

[1, 3, 7, 21, 67, 201, 337, 467, 469, 1011, 1401, 1407, 2359, 3269, 7077, 9807, 22579, 31289, 67737, 93867, 157379, 158053, 219023, 472137, 474159, 657069, 1101653, 3304959, 10544393, 31633179, 73810751, 221432253]

約数ペア:

[(1, 221432253), (3, 73810751), (7, 31633179), (21, 10544393), (67, 3304959), (201, 1101653), (337, 657069), (467, 474159), (469, 472137), (1011, 219023), (1401, 158053), (1407, 157379), (2359, 93867), (3269, 67737), (7077, 31289), (9807, 22579)]