19450448

素因数分解:

$2^4\times {\mathrm{17}}^1\times {\mathrm{43}}^1\times {\mathrm{1663}}^1$

素因数の和:1731

約数の個数: 40

約数和(自身を含む): 40854528

約数和(自身を除く): 21404080

約数列:

[1, 2, 4, 8, 16, 17, 34, 43, 68, 86, 136, 172, 272, 344, 688, 731, 1462, 1663, 2924, 3326, 5848, 6652, 11696, 13304, 26608, 28271, 56542, 71509, 113084, 143018, 226168, 286036, 452336, 572072, 1144144, 1215653, 2431306, 4862612, 9725224, 19450448]

約数ペア:

[(1, 19450448), (2, 9725224), (4, 4862612), (8, 2431306), (16, 1215653), (17, 1144144), (34, 572072), (43, 452336), (68, 286036), (86, 226168), (136, 143018), (172, 113084), (272, 71509), (344, 56542), (688, 28271), (731, 26608), (1462, 13304), (1663, 11696), (2924, 6652), (3326, 5848)]