20969648

素因数分解:

$2^4\times 7^3\times {\mathrm{3821}}^1$

素因数の和:3850

約数の個数: 40

約数和(自身を含む): 47392800

約数和(自身を除く): 26423152

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3821, 5488, 7642, 15284, 26747, 30568, 53494, 61136, 106988, 187229, 213976, 374458, 427952, 748916, 1310603, 1497832, 2621206, 2995664, 5242412, 10484824, 20969648]

約数ペア:

[(1, 20969648), (2, 10484824), (4, 5242412), (7, 2995664), (8, 2621206), (14, 1497832), (16, 1310603), (28, 748916), (49, 427952), (56, 374458), (98, 213976), (112, 187229), (196, 106988), (343, 61136), (392, 53494), (686, 30568), (784, 26747), (1372, 15284), (2744, 7642), (3821, 5488)]