20688592

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{23}}^1\times {\mathrm{3307}}^1$

素因数の和:3355

約数の個数: 40

約数和(自身を含む): 44300736

約数和(自身を除く): 23612144

約数列:

[1, 2, 4, 8, 16, 17, 23, 34, 46, 68, 92, 136, 184, 272, 368, 391, 782, 1564, 3128, 3307, 6256, 6614, 13228, 26456, 52912, 56219, 76061, 112438, 152122, 224876, 304244, 449752, 608488, 899504, 1216976, 1293037, 2586074, 5172148, 10344296, 20688592]

約数ペア:

[(1, 20688592), (2, 10344296), (4, 5172148), (8, 2586074), (16, 1293037), (17, 1216976), (23, 899504), (34, 608488), (46, 449752), (68, 304244), (92, 224876), (136, 152122), (184, 112438), (272, 76061), (368, 56219), (391, 52912), (782, 26456), (1564, 13228), (3128, 6614), (3307, 6256)]