20639904

素因数分解:

$2^5\times 3^1\times {\mathrm{17}}^1\times {\mathrm{12647}}^1$

素因数の和:12677

約数の個数: 48

約数和(自身を含む): 57371328

約数和(自身を除く): 36731424

約数列:

[1, 2, 3, 4, 6, 8, 12, 16, 17, 24, 32, 34, 48, 51, 68, 96, 102, 136, 204, 272, 408, 544, 816, 1632, 12647, 25294, 37941, 50588, 75882, 101176, 151764, 202352, 214999, 303528, 404704, 429998, 607056, 644997, 859996, 1214112, 1289994, 1719992, 2579988, 3439984, 5159976, 6879968, 10319952, 20639904]

約数ペア:

[(1, 20639904), (2, 10319952), (3, 6879968), (4, 5159976), (6, 3439984), (8, 2579988), (12, 1719992), (16, 1289994), (17, 1214112), (24, 859996), (32, 644997), (34, 607056), (48, 429998), (51, 404704), (68, 303528), (96, 214999), (102, 202352), (136, 151764), (204, 101176), (272, 75882), (408, 50588), (544, 37941), (816, 25294), (1632, 12647)]