21167272

素因数分解:

$2^3\times 7^1\times {\mathrm{431}}^1\times {\mathrm{877}}^1$

素因数の和:1321

約数の個数: 32

約数和(自身を含む): 45515520

約数和(自身を除く): 24348248

約数列:

[1, 2, 4, 7, 8, 14, 28, 56, 431, 862, 877, 1724, 1754, 3017, 3448, 3508, 6034, 6139, 7016, 12068, 12278, 24136, 24556, 49112, 377987, 755974, 1511948, 2645909, 3023896, 5291818, 10583636, 21167272]

約数ペア:

[(1, 21167272), (2, 10583636), (4, 5291818), (7, 3023896), (8, 2645909), (14, 1511948), (28, 755974), (56, 377987), (431, 49112), (862, 24556), (877, 24136), (1724, 12278), (1754, 12068), (3017, 7016), (3448, 6139), (3508, 6034)]