21515158

素因数分解:

$2^1\times 7^1\times {\mathrm{29}}^1\times {\mathrm{197}}^1\times {\mathrm{269}}^1$

素因数の和:504

約数の個数: 32

約数和(自身を含む): 38491200

約数和(自身を除く): 16976042

約数列:

[1, 2, 7, 14, 29, 58, 197, 203, 269, 394, 406, 538, 1379, 1883, 2758, 3766, 5713, 7801, 11426, 15602, 39991, 52993, 54607, 79982, 105986, 109214, 370951, 741902, 1536797, 3073594, 10757579, 21515158]

約数ペア:

[(1, 21515158), (2, 10757579), (7, 3073594), (14, 1536797), (29, 741902), (58, 370951), (197, 109214), (203, 105986), (269, 79982), (394, 54607), (406, 52993), (538, 39991), (1379, 15602), (1883, 11426), (2758, 7801), (3766, 5713)]