20621846

素因数分解:

$2^1\times 7^3\times {\mathrm{23}}^1\times {\mathrm{1307}}^1$

素因数の和:1353

約数の個数: 32

約数和(自身を含む): 37670400

約数和(自身を除く): 17048554

約数列:

[1, 2, 7, 14, 23, 46, 49, 98, 161, 322, 343, 686, 1127, 1307, 2254, 2614, 7889, 9149, 15778, 18298, 30061, 60122, 64043, 128086, 210427, 420854, 448301, 896602, 1472989, 2945978, 10310923, 20621846]

約数ペア:

[(1, 20621846), (2, 10310923), (7, 2945978), (14, 1472989), (23, 896602), (46, 448301), (49, 420854), (98, 210427), (161, 128086), (322, 64043), (343, 60122), (686, 30061), (1127, 18298), (1307, 15778), (2254, 9149), (2614, 7889)]