19520564

素因数分解:

$2^2\times 7^1\times {\mathrm{239}}^1\times {\mathrm{2917}}^1$

素因数の和:3167

約数の個数: 24

約数和(自身を含む): 39217920

約数和(自身を除く): 19697356

約数列:

[1, 2, 4, 7, 14, 28, 239, 478, 956, 1673, 2917, 3346, 5834, 6692, 11668, 20419, 40838, 81676, 697163, 1394326, 2788652, 4880141, 9760282, 19520564]

約数ペア:

[(1, 19520564), (2, 9760282), (4, 4880141), (7, 2788652), (14, 1394326), (28, 697163), (239, 81676), (478, 40838), (956, 20419), (1673, 11668), (2917, 6692), (3346, 5834)]