13209021

素因数分解:

$3^3\times 7^1\times {\mathrm{47}}^1\times {\mathrm{1487}}^1$

素因数の和:1550

約数の個数: 32

約数和(自身を含む): 22855680

約数和(自身を除く): 9646659

約数列:

[1, 3, 7, 9, 21, 27, 47, 63, 141, 189, 329, 423, 987, 1269, 1487, 2961, 4461, 8883, 10409, 13383, 31227, 40149, 69889, 93681, 209667, 281043, 489223, 629001, 1467669, 1887003, 4403007, 13209021]

約数ペア:

[(1, 13209021), (3, 4403007), (7, 1887003), (9, 1467669), (21, 629001), (27, 489223), (47, 281043), (63, 209667), (141, 93681), (189, 69889), (329, 40149), (423, 31227), (987, 13383), (1269, 10409), (1487, 8883), (2961, 4461)]