19959856

素因数分解:

$2^4\times 7^3\times {\mathrm{3637}}^1$

素因数の和:3666

約数の個数: 40

約数和(自身を含む): 45111200

約数和(自身を除く): 25151344

約数列:

[1, 2, 4, 7, 8, 14, 16, 28, 49, 56, 98, 112, 196, 343, 392, 686, 784, 1372, 2744, 3637, 5488, 7274, 14548, 25459, 29096, 50918, 58192, 101836, 178213, 203672, 356426, 407344, 712852, 1247491, 1425704, 2494982, 2851408, 4989964, 9979928, 19959856]

約数ペア:

[(1, 19959856), (2, 9979928), (4, 4989964), (7, 2851408), (8, 2494982), (14, 1425704), (16, 1247491), (28, 712852), (49, 407344), (56, 356426), (98, 203672), (112, 178213), (196, 101836), (343, 58192), (392, 50918), (686, 29096), (784, 25459), (1372, 14548), (2744, 7274), (3637, 5488)]