20131307

素因数分解:

$7^2\times {\mathrm{29}}^1\times {\mathrm{31}}^1\times {\mathrm{457}}^1$

素因数の和:531

約数の個数: 24

約数和(自身を含む): 25061760

約数和(自身を除く): 4930453

約数列:

[1, 7, 29, 31, 49, 203, 217, 457, 899, 1421, 1519, 3199, 6293, 13253, 14167, 22393, 44051, 92771, 99169, 410843, 649397, 694183, 2875901, 20131307]

約数ペア:

[(1, 20131307), (7, 2875901), (29, 694183), (31, 649397), (49, 410843), (203, 99169), (217, 92771), (457, 44051), (899, 22393), (1421, 14167), (1519, 13253), (3199, 6293)]