19919228

素因数分解:

$2^2\times 7^1\times {\mathrm{617}}^1\times {\mathrm{1153}}^1$

素因数の和:1781

約数の個数: 24

約数和(自身を含む): 39937632

約数和(自身を除く): 20018404

約数列:

[1, 2, 4, 7, 14, 28, 617, 1153, 1234, 2306, 2468, 4319, 4612, 8071, 8638, 16142, 17276, 32284, 711401, 1422802, 2845604, 4979807, 9959614, 19919228]

約数ペア:

[(1, 19919228), (2, 9959614), (4, 4979807), (7, 2845604), (14, 1422802), (28, 711401), (617, 32284), (1153, 17276), (1234, 16142), (2306, 8638), (2468, 8071), (4319, 4612)]